{"id":27339,"date":"2026-08-20T10:48:06","date_gmt":"2026-08-20T09:48:06","guid":{"rendered":"https:\/\/www.heartinternet.uk\/blog\/?p=27339"},"modified":"2026-08-20T11:03:42","modified_gmt":"2026-08-20T10:03:42","slug":"weekly-cybersecurity-summary-14-august-to-20-august-2026","status":"publish","type":"post","link":"https:\/\/www.heartinternet.uk\/blog\/weekly-cybersecurity-summary-14-august-to-20-august-2026\/","title":{"rendered":"Weekly Cybersecurity Summary \u2014 14 August to 20 August 2026"},"content":{"rendered":"[vc_row type=”in_container” full_screen_row_position=”middle” column_margin=”default” column_direction=”default” column_direction_tablet=”default” column_direction_phone=”default” scene_position=”center” bottom_padding=”2%” text_color=”dark” text_align=”left” row_border_radius=”none” row_border_radius_applies=”bg” overflow=”visible” overlay_strength=”0.3″ gradient_direction=”left_to_right” shape_divider_position=”bottom” bg_image_animation=”none” gradient_type=”default” shape_type=””][vc_column column_padding=”no-extra-padding” column_padding_tablet=”inherit” column_padding_phone=”inherit” column_padding_position=”all” column_element_direction_desktop=”default” column_element_spacing=”default” desktop_text_alignment=”default” tablet_text_alignment=”default” phone_text_alignment=”default” background_color_opacity=”1″ background_hover_color_opacity=”1″ column_backdrop_filter=”none” column_shadow=”none” column_border_radius=”none” column_link_target=”_self” column_position=”default” gradient_direction=”left_to_right” overlay_strength=”0.3″ width=”1\/1″ tablet_width_inherit=”default” animation_type=”default” bg_image_animation=”none” border_type=”simple” column_border_width=”none” column_border_style=”solid”][vc_row_inner column_margin=”default” column_direction=”default” column_direction_tablet=”default” column_direction_phone=”default” text_align=”left” row_position=”default” row_position_tablet=”inherit” row_position_phone=”inherit” overflow=”visible” pointer_events=”all”][vc_column_inner column_padding=”no-extra-padding” column_padding_tablet=”inherit” column_padding_phone=”inherit” column_padding_position=”all” column_element_direction_desktop=”default” column_element_spacing=”default” desktop_text_alignment=”default” tablet_text_alignment=”default” phone_text_alignment=”default” background_color_opacity=”1″ background_hover_color_opacity=”1″ column_backdrop_filter=”none” column_shadow=”none” column_border_radius=”none” column_link_target=”_self” overflow=”visible” gradient_direction=”left_to_right” overlay_strength=”0.3″ width=”1\/1″ tablet_width_inherit=”default” animation_type=”default” bg_image_animation=”none” border_type=”simple” column_border_width=”none” column_border_style=”solid”][vc_column_text css=”” text_direction=”default”]The Heart Internet Team are aware of several security issues affecting web hosting infrastructure this week, and we want to help organisations understand what they mean, who may be affected, and what sensible steps to take. This week’s issues are all at the operating system and web server infrastructure level rather than in website software itself, with a particular concentration of Linux kernel local privilege escalation bugs affecting shared and virtualised hosting platforms.[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][\/vc_column][\/vc_row][vc_row type=”in_container” full_screen_row_position=”middle” column_margin=”default” column_direction=”default” column_direction_tablet=”default” column_direction_phone=”default” scene_position=”center” bottom_padding=”2%” text_color=”dark” text_align=”left” row_border_radius=”none” row_border_radius_applies=”bg” overflow=”visible” overlay_strength=”0.3″ gradient_direction=”left_to_right” shape_divider_position=”bottom” bg_image_animation=”none” gradient_type=”default” shape_type=””][vc_column column_padding=”no-extra-padding” column_padding_tablet=”inherit” column_padding_phone=”inherit” column_padding_position=”all” column_element_direction_desktop=”default” column_element_spacing=”default” desktop_text_alignment=”default” tablet_text_alignment=”default” phone_text_alignment=”default” background_color_opacity=”1″ background_hover_color_opacity=”1″ column_backdrop_filter=”none” column_shadow=”none” column_border_radius=”none” column_link_target=”_self” column_position=”default” gradient_direction=”left_to_right” overlay_strength=”0.3″ width=”1\/1″ tablet_width_inherit=”default” animation_type=”default” bg_image_animation=”none” border_type=”simple” column_border_width=”none” column_border_style=”solid”][vc_row_inner column_margin=”default” column_direction=”default” column_direction_tablet=”default” column_direction_phone=”default” text_align=”left” row_position=”default” row_position_tablet=”inherit” row_position_phone=”inherit” overflow=”visible” pointer_events=”all”][vc_column_inner column_padding=”no-extra-padding” column_padding_tablet=”inherit” column_padding_phone=”inherit” column_padding_position=”all” column_element_direction_desktop=”default” column_element_spacing=”default” desktop_text_alignment=”default” tablet_text_alignment=”default” phone_text_alignment=”default” background_color_opacity=”1″ background_hover_color_opacity=”1″ column_backdrop_filter=”none” column_shadow=”none” column_border_radius=”none” column_link_target=”_self” overflow=”visible” gradient_direction=”left_to_right” overlay_strength=”0.3″ width=”1\/1″ tablet_width_inherit=”default” animation_type=”default” bg_image_animation=”none” border_type=”simple” column_border_width=”none” column_border_style=”solid”][split_line_heading animation_type=”line-reveal-by-space” font_style=”h3″ line_reveal_by_space_text_effect=”none” content_alignment=”default” mobile_content_alignment=”inherit” link_target=”_self” text_content=”`{`High`}` Apache Portable Runtime Utility heap buffer overflows (CVE-2026-34501, CVE-2026-34502)” text_direction=”default”][\/split_line_heading][divider line_type=”Full Width Line” line_thickness=”3″ divider_color=”default”][vc_column_text css=”” text_direction=”default”]Apache Portable Runtime Utility (apr-util) is a supporting library used by Apache httpd and many PHP builds. Two heap buffer overflow flaws were found in its caching-backend client code: one in the Redis client (CVE-2026-34501) and one in the memcached client (CVE-2026-34502). Both were disclosed by the Apache Software Foundation alongside the release of apr-util 1.6.4 around 12-13 August 2026, and reshipped by Debian in DSA-6437-1 on 13 August. The root cause is a buffer overflow triggered when the library parses a response from a Redis or memcached backend it is connected to, meaning a malicious or compromised caching backend could corrupt server memory.[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][vc_row_inner column_margin=”default” column_direction=”default” column_direction_tablet=”default” column_direction_phone=”default” text_align=”left” row_position=”default” row_position_tablet=”inherit” row_position_phone=”inherit” overflow=”visible” pointer_events=”all”][vc_column_inner column_padding=”no-extra-padding” column_padding_tablet=”inherit” column_padding_phone=”inherit” column_padding_position=”all” column_element_direction_desktop=”default” column_element_spacing=”default” desktop_text_alignment=”default” tablet_text_alignment=”default” phone_text_alignment=”default” background_color_opacity=”1″ background_hover_color_opacity=”1″ column_backdrop_filter=”none” column_shadow=”none” column_border_radius=”none” column_link_target=”_self” overflow=”visible” gradient_direction=”left_to_right” overlay_strength=”0.3″ width=”1\/3″ tablet_width_inherit=”default” animation_type=”default” bg_image_animation=”none” border_type=”simple” column_border_width=”none” column_border_style=”solid”][fancy_box box_style=”color_box_hover” icon_family=”fontawesome” color=”accent-color” color_box_hover_overlay_opacity=”default” box_alignment=”center” enable_border=”true” border_radius=”default” image_loading=”default” icon_fontawesome=”fa fa-exclamation-triangle” icon_size=”20″ min_height=”120″]\n

Affected: <\/strong><\/h4>\n

apr-util 1.6.0\u20131.6.3 (Redis client); apr-util 1.3.0\u20131.6.3 (memcached client).[\/fancy_box][\/vc_column_inner][vc_column_inner column_padding=”no-extra-padding” column_padding_tablet=”inherit” column_padding_phone=”inherit” column_padding_position=”all” column_element_direction_desktop=”default” column_element_spacing=”default” desktop_text_alignment=”default” tablet_text_alignment=”default” phone_text_alignment=”default” background_color_opacity=”1″ background_hover_color_opacity=”1″ column_backdrop_filter=”none” column_shadow=”none” column_border_radius=”none” column_link_target=”_self” overflow=”visible” gradient_direction=”left_to_right” overlay_strength=”0.3″ width=”1\/3″ tablet_width_inherit=”default” animation_type=”default” bg_image_animation=”none” border_type=”simple” column_border_width=”none” column_border_style=”solid”][fancy_box box_style=”color_box_hover” icon_family=”fontawesome” color=”accent-color” color_box_hover_overlay_opacity=”default” box_alignment=”center” enable_border=”true” border_radius=”default” image_loading=”default” icon_fontawesome=”fa fa-check” icon_size=”20″ min_height=”120″]\n

Fixed version: <\/strong><\/h4>\n

apr-util 1.6.4 (a later 1.6.5 release exists but addresses unrelated issues, not these two CVEs).[\/fancy_box][\/vc_column_inner][vc_column_inner column_padding=”no-extra-padding” column_padding_tablet=”inherit” column_padding_phone=”inherit” column_padding_position=”all” column_element_direction_desktop=”default” column_element_spacing=”default” desktop_text_alignment=”default” tablet_text_alignment=”default” phone_text_alignment=”default” background_color_opacity=”1″ background_hover_color_opacity=”1″ column_backdrop_filter=”none” column_shadow=”none” column_border_radius=”none” column_link_target=”_self” overflow=”visible” gradient_direction=”left_to_right” overlay_strength=”0.3″ width=”1\/3″ tablet_width_inherit=”default” animation_type=”default” bg_image_animation=”none” border_type=”simple” column_border_width=”none” column_border_style=”solid”][fancy_box box_style=”color_box_hover” icon_family=”fontawesome” color=”accent-color” color_box_hover_overlay_opacity=”default” box_alignment=”center” enable_border=”true” border_radius=”default” image_loading=”default” icon_fontawesome=”fa fa-star” icon_size=”20″ min_height=”120″]\n

CVSS: <\/strong><\/h4>\n

7.5 (network vector, but availability-only impact; requires the server to talk to a malicious or compromised Redis\/memcached backend rather than being exploitable directly over the web).[\/fancy_box][\/vc_column_inner][\/vc_row_inner][vc_row_inner column_margin=”default” column_direction=”default” column_direction_tablet=”default” column_direction_phone=”default” text_align=”left” row_position=”default” row_position_tablet=”inherit” row_position_phone=”inherit” overflow=”visible” pointer_events=”all”][vc_column_inner column_padding=”no-extra-padding” column_padding_tablet=”inherit” column_padding_phone=”inherit” column_padding_position=”all” column_element_direction_desktop=”default” column_element_spacing=”default” desktop_text_alignment=”default” tablet_text_alignment=”default” phone_text_alignment=”default” background_color_opacity=”1″ background_hover_color_opacity=”1″ column_backdrop_filter=”none” column_shadow=”none” column_border_radius=”none” column_link_target=”_self” overflow=”visible” gradient_direction=”left_to_right” overlay_strength=”0.3″ width=”1\/1″ tablet_width_inherit=”default” animation_type=”default” bg_image_animation=”none” border_type=”simple” column_border_width=”none” column_border_style=”solid”][split_line_heading animation_type=”line-reveal-by-space” font_style=”h3″ line_reveal_by_space_text_effect=”none” content_alignment=”default” mobile_content_alignment=”inherit” link_target=”_self” text_content=”What This Means For You:” text_direction=”default”][\/split_line_heading][vc_column_text css=”” text_direction=”default”]On shared hosting, this only matters where apr-util’s Redis or memcached client is configured against a backend outside your direct control, which is uncommon in standard shared-hosting set-ups. On VPS or dedicated servers where you run your own Redis or memcached instance, make sure that instance is not reachable by untrusted parties, and update apr-util regardless.[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][vc_row_inner column_margin=”default” column_direction=”default” column_direction_tablet=”default” column_direction_phone=”default” text_align=”left” row_position=”default” row_position_tablet=”inherit” row_position_phone=”inherit” overflow=”visible” pointer_events=”all”][vc_column_inner column_padding=”no-extra-padding” column_padding_tablet=”inherit” column_padding_phone=”inherit” column_padding_position=”all” column_element_direction_desktop=”default” column_element_spacing=”default” desktop_text_alignment=”default” tablet_text_alignment=”default” phone_text_alignment=”default” background_color_opacity=”1″ background_hover_color_opacity=”1″ column_backdrop_filter=”none” column_shadow=”none” column_border_radius=”none” column_link_target=”_self” overflow=”visible” gradient_direction=”left_to_right” overlay_strength=”0.3″ width=”1\/1″ tablet_width_inherit=”default” animation_type=”default” bg_image_animation=”none” border_type=”simple” column_border_width=”none” column_border_style=”solid”][split_line_heading animation_type=”line-reveal-by-space” font_style=”h3″ line_reveal_by_space_text_effect=”none” content_alignment=”default” mobile_content_alignment=”inherit” link_target=”_self” text_content=”Recommended Action:” text_direction=”default”][\/split_line_heading][vc_column_text css=”” text_direction=”default”]Update apr-util to 1.6.4 or later via your distribution’s package manager; Debian 13 users should apply DSA-6437-1, and Debian 12\/AlmaLinux\/Ubuntu users should check for an equivalent backported update.[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][\/vc_column][\/vc_row][vc_row type=”in_container” full_screen_row_position=”middle” column_margin=”default” column_direction=”default” column_direction_tablet=”default” column_direction_phone=”default” scene_position=”center” bottom_padding=”2%” text_color=”dark” text_align=”left” row_border_radius=”none” row_border_radius_applies=”bg” overflow=”visible” overlay_strength=”0.3″ gradient_direction=”left_to_right” shape_divider_position=”bottom” bg_image_animation=”none” gradient_type=”default” shape_type=””][vc_column column_padding=”no-extra-padding” column_padding_tablet=”inherit” column_padding_phone=”inherit” column_padding_position=”all” column_element_direction_desktop=”default” column_element_spacing=”default” desktop_text_alignment=”default” tablet_text_alignment=”default” phone_text_alignment=”default” background_color_opacity=”1″ background_hover_color_opacity=”1″ column_backdrop_filter=”none” column_shadow=”none” column_border_radius=”none” column_link_target=”_self” column_position=”default” gradient_direction=”left_to_right” overlay_strength=”0.3″ width=”1\/1″ tablet_width_inherit=”default” animation_type=”default” bg_image_animation=”none” border_type=”simple” column_border_width=”none” column_border_style=”solid”][vc_row_inner column_margin=”default” column_direction=”default” column_direction_tablet=”default” column_direction_phone=”default” text_align=”left” row_position=”default” row_position_tablet=”inherit” row_position_phone=”inherit” overflow=”visible” pointer_events=”all”][vc_column_inner column_padding=”no-extra-padding” column_padding_tablet=”inherit” column_padding_phone=”inherit” column_padding_position=”all” column_element_direction_desktop=”default” column_element_spacing=”default” desktop_text_alignment=”default” tablet_text_alignment=”default” phone_text_alignment=”default” background_color_opacity=”1″ background_hover_color_opacity=”1″ column_backdrop_filter=”none” column_shadow=”none” column_border_radius=”none” column_link_target=”_self” overflow=”visible” gradient_direction=”left_to_right” overlay_strength=”0.3″ width=”1\/1″ tablet_width_inherit=”default” animation_type=”default” bg_image_animation=”none” border_type=”simple” column_border_width=”none” column_border_style=”solid”][split_line_heading animation_type=”line-reveal-by-space” font_style=”h3″ line_reveal_by_space_text_effect=”none” content_alignment=”default” mobile_content_alignment=”inherit” link_target=”_self” text_content=”`{`High`}` BadGarbage \u2014 Linux kernel local root and container escape (CVE-2026-53361)” text_direction=”default”][\/split_line_heading][divider line_type=”Full Width Line” line_thickness=”3″ divider_color=”default”][vc_column_text css=”” text_direction=”default”]BadGarbage is a use-after-free race condition in the Linux kernel’s AF_UNIX socket garbage collector, triggered by a race between an MSG_PEEK read and the garbage collector itself. The CVE was published by NVD on 4 July 2026 with a CVSS score added by the kernel.org CNA on 18 July, but it only became an urgent operational concern once a working public proof-of-concept was released on 10 August 2026. CloudLinux published its own advisory confirming impact on the AlmaLinux 10 kernel line on 17 August.<\/p>\n

Exploiting the race lets an unprivileged local user escalate straight to root, and in CloudLinux’s own lab testing, escape a default Docker container to host root in under 30 seconds.[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][vc_row_inner column_margin=”default” column_direction=”default” column_direction_tablet=”default” column_direction_phone=”default” text_align=”left” row_position=”default” row_position_tablet=”inherit” row_position_phone=”inherit” overflow=”visible” pointer_events=”all”][vc_column_inner column_padding=”no-extra-padding” column_padding_tablet=”inherit” column_padding_phone=”inherit” column_padding_position=”all” column_element_direction_desktop=”default” column_element_spacing=”default” desktop_text_alignment=”default” tablet_text_alignment=”default” phone_text_alignment=”default” background_color_opacity=”1″ background_hover_color_opacity=”1″ column_backdrop_filter=”none” column_shadow=”none” column_border_radius=”none” column_link_target=”_self” overflow=”visible” gradient_direction=”left_to_right” overlay_strength=”0.3″ width=”1\/3″ tablet_width_inherit=”default” animation_type=”default” bg_image_animation=”none” border_type=”simple” column_border_width=”none” column_border_style=”solid”][fancy_box box_style=”color_box_hover” icon_family=”fontawesome” color=”accent-color” color_box_hover_overlay_opacity=”default” box_alignment=”center” enable_border=”true” border_radius=”default” image_loading=”default” icon_fontawesome=”fa fa-exclamation-triangle” icon_size=”20″ min_height=”120″]\n

Affected: <\/strong><\/h4>\n

Linux kernel 6.9 and later, specifically the CloudLinux 10 \/ AlmaLinux 10 kernel line. CloudLinux\/AlmaLinux 7-9 are not affected.[\/fancy_box][\/vc_column_inner][vc_column_inner column_padding=”no-extra-padding” column_padding_tablet=”inherit” column_padding_phone=”inherit” column_padding_position=”all” column_element_direction_desktop=”default” column_element_spacing=”default” desktop_text_alignment=”default” tablet_text_alignment=”default” phone_text_alignment=”default” background_color_opacity=”1″ background_hover_color_opacity=”1″ column_backdrop_filter=”none” column_shadow=”none” column_border_radius=”none” column_link_target=”_self” overflow=”visible” gradient_direction=”left_to_right” overlay_strength=”0.3″ width=”1\/3″ tablet_width_inherit=”default” animation_type=”default” bg_image_animation=”none” border_type=”simple” column_border_width=”none” column_border_style=”solid”][fancy_box box_style=”color_box_hover” icon_family=”fontawesome” color=”accent-color” color_box_hover_overlay_opacity=”default” box_alignment=”center” enable_border=”true” border_radius=”default” image_loading=”default” icon_fontawesome=”fa fa-check” icon_size=”20″ min_height=”120″]\n

Fixed version:<\/strong><\/h4>\n

kernel-6.12.0-211.47.1.el10_2 on AlmaLinux 10; the upstream fix has been available since May 2026.[\/fancy_box][\/vc_column_inner][vc_column_inner column_padding=”no-extra-padding” column_padding_tablet=”inherit” column_padding_phone=”inherit” column_padding_position=”all” column_element_direction_desktop=”default” column_element_spacing=”default” desktop_text_alignment=”default” tablet_text_alignment=”default” phone_text_alignment=”default” background_color_opacity=”1″ background_hover_color_opacity=”1″ column_backdrop_filter=”none” column_shadow=”none” column_border_radius=”none” column_link_target=”_self” overflow=”visible” gradient_direction=”left_to_right” overlay_strength=”0.3″ width=”1\/3″ tablet_width_inherit=”default” animation_type=”default” bg_image_animation=”none” border_type=”simple” column_border_width=”none” column_border_style=”solid”][fancy_box box_style=”color_box_hover” icon_family=”fontawesome” color=”accent-color” color_box_hover_overlay_opacity=”default” box_alignment=”center” enable_border=”true” border_radius=”default” image_loading=”default” icon_fontawesome=”fa fa-star” icon_size=”20″ min_height=”120″]\n

CVSS: <\/strong><\/h4>\n

7.1 (Local, low complexity, low privileges required, no user interaction, high confidentiality\/availability impact).[\/fancy_box][\/vc_column_inner][\/vc_row_inner][vc_row_inner column_margin=”default” column_direction=”default” column_direction_tablet=”default” column_direction_phone=”default” text_align=”left” row_position=”default” row_position_tablet=”inherit” row_position_phone=”inherit” overflow=”visible” pointer_events=”all”][vc_column_inner column_padding=”no-extra-padding” column_padding_tablet=”inherit” column_padding_phone=”inherit” column_padding_position=”all” column_element_direction_desktop=”default” column_element_spacing=”default” desktop_text_alignment=”default” tablet_text_alignment=”default” phone_text_alignment=”default” background_color_opacity=”1″ background_hover_color_opacity=”1″ column_backdrop_filter=”none” column_shadow=”none” column_border_radius=”none” column_link_target=”_self” overflow=”visible” gradient_direction=”left_to_right” overlay_strength=”0.3″ width=”1\/1″ tablet_width_inherit=”default” animation_type=”default” bg_image_animation=”none” border_type=”simple” column_border_width=”none” column_border_style=”solid”][split_line_heading animation_type=”line-reveal-by-space” font_style=”h3″ line_reveal_by_space_text_effect=”none” content_alignment=”default” mobile_content_alignment=”inherit” link_target=”_self” text_content=”What This Means For You:” text_direction=”default”][\/split_line_heading][vc_column_text css=”” text_direction=”default”]On shared hosting running AlmaLinux 10 or CloudLinux 10, this is a route to full host compromise from any local account, including from inside a container, which is a serious concern for multi-tenant infrastructure. VPS customers on the same kernel line with shell access granted to other users should treat this as high priority too.[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][vc_row_inner column_margin=”default” column_direction=”default” column_direction_tablet=”default” column_direction_phone=”default” text_align=”left” row_position=”default” row_position_tablet=”inherit” row_position_phone=”inherit” overflow=”visible” pointer_events=”all”][vc_column_inner column_padding=”no-extra-padding” column_padding_tablet=”inherit” column_padding_phone=”inherit” column_padding_position=”all” column_element_direction_desktop=”default” column_element_spacing=”default” desktop_text_alignment=”default” tablet_text_alignment=”default” phone_text_alignment=”default” background_color_opacity=”1″ background_hover_color_opacity=”1″ column_backdrop_filter=”none” column_shadow=”none” column_border_radius=”none” column_link_target=”_self” overflow=”visible” gradient_direction=”left_to_right” overlay_strength=”0.3″ width=”1\/1″ tablet_width_inherit=”default” animation_type=”default” bg_image_animation=”none” border_type=”simple” column_border_width=”none” column_border_style=”solid”][split_line_heading animation_type=”line-reveal-by-space” font_style=”h3″ line_reveal_by_space_text_effect=”none” content_alignment=”default” mobile_content_alignment=”inherit” link_target=”_self” text_content=”Recommended Action:” text_direction=”default”][\/split_line_heading][vc_column_text css=”” text_direction=”default”]Apply the AlmaLinux 10 kernel update (or your CloudLinux equivalent) as soon as possible.[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][\/vc_column][\/vc_row][vc_row type=”in_container” full_screen_row_position=”middle” column_margin=”default” column_direction=”default” column_direction_tablet=”default” column_direction_phone=”default” scene_position=”center” bottom_padding=”2%” text_color=”dark” text_align=”left” row_border_radius=”none” row_border_radius_applies=”bg” overflow=”visible” overlay_strength=”0.3″ gradient_direction=”left_to_right” shape_divider_position=”bottom” bg_image_animation=”none” gradient_type=”default” shape_type=””][vc_column column_padding=”no-extra-padding” column_padding_tablet=”inherit” column_padding_phone=”inherit” column_padding_position=”all” column_element_direction_desktop=”default” column_element_spacing=”default” desktop_text_alignment=”default” tablet_text_alignment=”default” phone_text_alignment=”default” background_color_opacity=”1″ background_hover_color_opacity=”1″ column_backdrop_filter=”none” column_shadow=”none” column_border_radius=”none” column_link_target=”_self” column_position=”default” gradient_direction=”left_to_right” overlay_strength=”0.3″ width=”1\/1″ tablet_width_inherit=”default” animation_type=”default” bg_image_animation=”none” border_type=”simple” column_border_width=”none” column_border_style=”solid”][vc_row_inner column_margin=”default” column_direction=”default” column_direction_tablet=”default” column_direction_phone=”default” text_align=”left” row_position=”default” row_position_tablet=”inherit” row_position_phone=”inherit” overflow=”visible” pointer_events=”all”][vc_column_inner column_padding=”no-extra-padding” column_padding_tablet=”inherit” column_padding_phone=”inherit” column_padding_position=”all” column_element_direction_desktop=”default” column_element_spacing=”default” desktop_text_alignment=”default” tablet_text_alignment=”default” phone_text_alignment=”default” background_color_opacity=”1″ background_hover_color_opacity=”1″ column_backdrop_filter=”none” column_shadow=”none” column_border_radius=”none” column_link_target=”_self” overflow=”visible” gradient_direction=”left_to_right” overlay_strength=”0.3″ width=”1\/1″ tablet_width_inherit=”default” animation_type=”default” bg_image_animation=”none” border_type=”simple” column_border_width=”none” column_border_style=”solid”][split_line_heading animation_type=”line-reveal-by-space” font_style=”h3″ line_reveal_by_space_text_effect=”none” content_alignment=”default” mobile_content_alignment=”inherit” link_target=”_self” text_content=”`{`Moderate\u2013High`}` RtabRace \u2014 Linux kernel traffic-control race condition (CVE-2026-68138)” text_direction=”default”][\/split_line_heading][divider line_type=”Full Width Line” line_thickness=”3″ divider_color=”default”][vc_column_text css=”” text_direction=”default”]RtabRace is a race condition in the Linux kernel’s traffic-control (TC) subsystem, specifically in the code that manages rate-table objects, reachable through the unlocked “flower” and “police” filter path. A public proof-of-concept was published by researcher A. Ramos on 12 August 2026, reliably escalating to root on a stock Ubuntu 22.04 system. CloudLinux published its own advisory and a sysctl-based mitigation on 18 August.<\/p>\n

An unprivileged local user who can open a Linux user namespace can trigger a double-free that corrupts kernel memory badly enough to crash the host outright on CloudLinux, or be chained to full root elsewhere.[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][vc_row_inner column_margin=”default” column_direction=”default” column_direction_tablet=”default” column_direction_phone=”default” text_align=”left” row_position=”default” row_position_tablet=”inherit” row_position_phone=”inherit” overflow=”visible” pointer_events=”all”][vc_column_inner column_padding=”no-extra-padding” column_padding_tablet=”inherit” column_padding_phone=”inherit” column_padding_position=”all” column_element_direction_desktop=”default” column_element_spacing=”default” desktop_text_alignment=”default” tablet_text_alignment=”default” phone_text_alignment=”default” background_color_opacity=”1″ background_hover_color_opacity=”1″ column_backdrop_filter=”none” column_shadow=”none” column_border_radius=”none” column_link_target=”_self” overflow=”visible” gradient_direction=”left_to_right” overlay_strength=”0.3″ width=”1\/3″ tablet_width_inherit=”default” animation_type=”default” bg_image_animation=”none” border_type=”simple” column_border_width=”none” column_border_style=”solid”][fancy_box box_style=”color_box_hover” icon_family=”fontawesome” color=”accent-color” color_box_hover_overlay_opacity=”default” box_alignment=”center” enable_border=”true” border_radius=”default” image_loading=”default” icon_fontawesome=”fa fa-exclamation-triangle” icon_size=”20″ min_height=”120″]\n

Affected: <\/strong><\/h4>\n

CloudLinux 8 and CloudLinux 7 Hybrid by default (both ship with unprivileged user namespaces enabled). CloudLinux 9\/10, 8 LTS and 9 LTS carry the same code but are stock-protected. The same code path exists in the AlmaLinux\/RHEL\/Rocky kernel line, where a fix is still pending.[\/fancy_box][\/vc_column_inner][vc_column_inner column_padding=”no-extra-padding” column_padding_tablet=”inherit” column_padding_phone=”inherit” column_padding_position=”all” column_element_direction_desktop=”default” column_element_spacing=”default” desktop_text_alignment=”default” tablet_text_alignment=”default” phone_text_alignment=”default” background_color_opacity=”1″ background_hover_color_opacity=”1″ column_backdrop_filter=”none” column_shadow=”none” column_border_radius=”none” column_link_target=”_self” overflow=”visible” gradient_direction=”left_to_right” overlay_strength=”0.3″ width=”1\/3″ tablet_width_inherit=”default” animation_type=”default” bg_image_animation=”none” border_type=”simple” column_border_width=”none” column_border_style=”solid”][fancy_box box_style=”color_box_hover” icon_family=”fontawesome” color=”accent-color” color_box_hover_overlay_opacity=”default” box_alignment=”center” enable_border=”true” border_radius=”default” image_loading=”default” icon_fontawesome=”fa fa-check” icon_size=”20″ min_height=”120″]\n

Fixed version:<\/strong><\/h4>\n

No AlmaLinux\/RHEL kernel fix has shipped as of 20 August; CloudLinux’s sysctl workaround (user.max_user_namespaces=0) does not require a reboot.[\/fancy_box][\/vc_column_inner][vc_column_inner column_padding=”no-extra-padding” column_padding_tablet=”inherit” column_padding_phone=”inherit” column_padding_position=”all” column_element_direction_desktop=”default” column_element_spacing=”default” desktop_text_alignment=”default” tablet_text_alignment=”default” phone_text_alignment=”default” background_color_opacity=”1″ background_hover_color_opacity=”1″ column_backdrop_filter=”none” column_shadow=”none” column_border_radius=”none” column_link_target=”_self” overflow=”visible” gradient_direction=”left_to_right” overlay_strength=”0.3″ width=”1\/3″ tablet_width_inherit=”default” animation_type=”default” bg_image_animation=”none” border_type=”simple” column_border_width=”none” column_border_style=”solid”][fancy_box box_style=”color_box_hover” icon_family=”fontawesome” color=”accent-color” color_box_hover_overlay_opacity=”default” box_alignment=”center” enable_border=”true” border_radius=”default” image_loading=”default” icon_fontawesome=”fa fa-star” icon_size=”20″ min_height=”120″]\n

CVSS: <\/strong><\/h4>\n

Reported by Red Hat as Moderate severity, broadly in line with other traffic-control race bugs this cycle around CVSS 7.0; we have not been able to confirm an authoritative NVD score specific to this CVE at the time of writing, so treat any numeric figure as provisional.[\/fancy_box][\/vc_column_inner][\/vc_row_inner][vc_row_inner column_margin=”default” column_direction=”default” column_direction_tablet=”default” column_direction_phone=”default” text_align=”left” row_position=”default” row_position_tablet=”inherit” row_position_phone=”inherit” overflow=”visible” pointer_events=”all”][vc_column_inner column_padding=”no-extra-padding” column_padding_tablet=”inherit” column_padding_phone=”inherit” column_padding_position=”all” column_element_direction_desktop=”default” column_element_spacing=”default” desktop_text_alignment=”default” tablet_text_alignment=”default” phone_text_alignment=”default” background_color_opacity=”1″ background_hover_color_opacity=”1″ column_backdrop_filter=”none” column_shadow=”none” column_border_radius=”none” column_link_target=”_self” overflow=”visible” gradient_direction=”left_to_right” overlay_strength=”0.3″ width=”1\/1″ tablet_width_inherit=”default” animation_type=”default” bg_image_animation=”none” border_type=”simple” column_border_width=”none” column_border_style=”solid”][split_line_heading animation_type=”line-reveal-by-space” font_style=”h3″ line_reveal_by_space_text_effect=”none” content_alignment=”default” mobile_content_alignment=”inherit” link_target=”_self” text_content=”What This Means For You:” text_direction=”default”][\/split_line_heading][vc_column_text css=”” text_direction=”default”]This is squarely a shared-hosting risk: any local account on an exposed CloudLinux 8 or CloudLinux 7 Hybrid server, or any AlmaLinux server once a fix reveals the same exposure, can crash or potentially escalate on the host.[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][vc_row_inner column_margin=”default” column_direction=”default” column_direction_tablet=”default” column_direction_phone=”default” text_align=”left” row_position=”default” row_position_tablet=”inherit” row_position_phone=”inherit” overflow=”visible” pointer_events=”all”][vc_column_inner column_padding=”no-extra-padding” column_padding_tablet=”inherit” column_padding_phone=”inherit” column_padding_position=”all” column_element_direction_desktop=”default” column_element_spacing=”default” desktop_text_alignment=”default” tablet_text_alignment=”default” phone_text_alignment=”default” background_color_opacity=”1″ background_hover_color_opacity=”1″ column_backdrop_filter=”none” column_shadow=”none” column_border_radius=”none” column_link_target=”_self” overflow=”visible” gradient_direction=”left_to_right” overlay_strength=”0.3″ width=”1\/1″ tablet_width_inherit=”default” animation_type=”default” bg_image_animation=”none” border_type=”simple” column_border_width=”none” column_border_style=”solid”][split_line_heading animation_type=”line-reveal-by-space” font_style=”h3″ line_reveal_by_space_text_effect=”none” content_alignment=”default” mobile_content_alignment=”inherit” link_target=”_self” text_content=”Recommended Action:” text_direction=”default”][\/split_line_heading][vc_column_text css=”” text_direction=”default”]On CloudLinux 8\/CloudLinux 7 Hybrid, apply CloudLinux’s sysctl mitigation immediately. Keep an eye on AlmaLinux\/RHEL advisories for a permanent kernel fix.[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][\/vc_column][\/vc_row][vc_row type=”in_container” full_screen_row_position=”middle” column_margin=”default” column_direction=”default” column_direction_tablet=”default” column_direction_phone=”default” scene_position=”center” bottom_padding=”2%” text_color=”dark” text_align=”left” row_border_radius=”none” row_border_radius_applies=”bg” overflow=”visible” overlay_strength=”0.3″ gradient_direction=”left_to_right” shape_divider_position=”bottom” bg_image_animation=”none” gradient_type=”default” shape_type=””][vc_column column_padding=”no-extra-padding” column_padding_tablet=”inherit” column_padding_phone=”inherit” column_padding_position=”all” column_element_direction_desktop=”default” column_element_spacing=”default” desktop_text_alignment=”default” tablet_text_alignment=”default” phone_text_alignment=”default” background_color_opacity=”1″ background_hover_color_opacity=”1″ column_backdrop_filter=”none” column_shadow=”none” column_border_radius=”none” column_link_target=”_self” column_position=”default” gradient_direction=”left_to_right” overlay_strength=”0.3″ width=”1\/1″ tablet_width_inherit=”default” animation_type=”default” bg_image_animation=”none” border_type=”simple” column_border_width=”none” column_border_style=”solid”][vc_row_inner column_margin=”default” column_direction=”default” column_direction_tablet=”default” column_direction_phone=”default” text_align=”left” row_position=”default” row_position_tablet=”inherit” row_position_phone=”inherit” overflow=”visible” pointer_events=”all”][vc_column_inner column_padding=”no-extra-padding” column_padding_tablet=”inherit” column_padding_phone=”inherit” column_padding_position=”all” column_element_direction_desktop=”default” column_element_spacing=”default” desktop_text_alignment=”default” tablet_text_alignment=”default” phone_text_alignment=”default” background_color_opacity=”1″ background_hover_color_opacity=”1″ column_backdrop_filter=”none” column_shadow=”none” column_border_radius=”none” column_link_target=”_self” overflow=”visible” gradient_direction=”left_to_right” overlay_strength=”0.3″ width=”1\/1″ tablet_width_inherit=”default” animation_type=”default” bg_image_animation=”none” border_type=”simple” column_border_width=”none” column_border_style=”solid”][split_line_heading animation_type=”line-reveal-by-space” font_style=”h3″ line_reveal_by_space_text_effect=”none” content_alignment=”default” mobile_content_alignment=”inherit” link_target=”_self” text_content=”`{`Medium, disputed`}` VsockDrop \u2014 Linux kernel vsock\/io_uring local root (CVE-2026-53365)” text_direction=”default”][\/split_line_heading][divider line_type=”Full Width Line” line_thickness=”3″ divider_color=”default”][vc_column_text css=”” text_direction=”default”]VsockDrop is a data-only exploit in the Linux kernel’s virtio-vsock zero-copy send path, combined with io_uring registered buffers. When a large zero-copy send fragments across multiple socket buffers, only the final buffer receives a completion-tracking object; earlier buffers hold pinned memory pages with no such record, so the kernel eventually drops a page reference it never held. The freed page can then be reused by the kernel as page cache for a setuid-root binary such as \/usr\/bin\/su, letting a local attacker rewrite it and gain root, without any memory corruption or information leak. The CVE was published on 13 July 2026 with an upstream fix already merged in May, but a working public proof-of-concept only surfaced in mid-August: CISA logged public-exploit availability on 17 August, TuxCare independently reproduced a working root exploit on Ubuntu 24.04 and AlmaLinux 10.2 on 18 August, and CloudLinux confirmed on 19 August that stock CloudLinux\/AlmaLinux configurations are not affected.[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][vc_row_inner column_margin=”default” column_direction=”default” column_direction_tablet=”default” column_direction_phone=”default” text_align=”left” row_position=”default” row_position_tablet=”inherit” row_position_phone=”inherit” overflow=”visible” pointer_events=”all”][vc_column_inner column_padding=”no-extra-padding” column_padding_tablet=”inherit” column_padding_phone=”inherit” column_padding_position=”all” column_element_direction_desktop=”default” column_element_spacing=”default” desktop_text_alignment=”default” tablet_text_alignment=”default” phone_text_alignment=”default” background_color_opacity=”1″ background_hover_color_opacity=”1″ column_backdrop_filter=”none” column_shadow=”none” column_border_radius=”none” column_link_target=”_self” overflow=”visible” gradient_direction=”left_to_right” overlay_strength=”0.3″ width=”1\/3″ tablet_width_inherit=”default” animation_type=”default” bg_image_animation=”none” border_type=”simple” column_border_width=”none” column_border_style=”solid”][fancy_box box_style=”color_box_hover” icon_family=”fontawesome” color=”accent-color” color_box_hover_overlay_opacity=”default” box_alignment=”center” enable_border=”true” border_radius=”default” image_loading=”default” icon_fontawesome=”fa fa-exclamation-triangle” icon_size=”20″ min_height=”120″]\n

Affected: <\/strong><\/h4>\n

AlmaLinux\/RHEL 9 and 10 carry the vulnerable code but ship with io_uring disabled by default (kernel.io_uring_disabled=2), which blocks the exploit unless that setting has been changed. Ubuntu 22.04 on the 6.8 HWE kernel and 24.04 LTS are exploitable with no configuration changes required.[\/fancy_box][\/vc_column_inner][vc_column_inner column_padding=”no-extra-padding” column_padding_tablet=”inherit” column_padding_phone=”inherit” column_padding_position=”all” column_element_direction_desktop=”default” column_element_spacing=”default” desktop_text_alignment=”default” tablet_text_alignment=”default” phone_text_alignment=”default” background_color_opacity=”1″ background_hover_color_opacity=”1″ column_backdrop_filter=”none” column_shadow=”none” column_border_radius=”none” column_link_target=”_self” overflow=”visible” gradient_direction=”left_to_right” overlay_strength=”0.3″ width=”1\/3″ tablet_width_inherit=”default” animation_type=”default” bg_image_animation=”none” border_type=”simple” column_border_width=”none” column_border_style=”solid”][fancy_box box_style=”color_box_hover” icon_family=”fontawesome” color=”accent-color” color_box_hover_overlay_opacity=”default” box_alignment=”center” enable_border=”true” border_radius=”default” image_loading=”default” icon_fontawesome=”fa fa-check” icon_size=”20″ min_height=”120″]\n

Fixed version: <\/strong><\/h4>\n

Merged upstream for kernel 7.1-rc5. As of 19 August, no dedicated Ubuntu kernel security update had been confirmed for the affected lines; check ubuntu.com\/security for CVE-2026-53365 for the latest status before assuming this remains unpatched.[\/fancy_box][\/vc_column_inner][vc_column_inner column_padding=”no-extra-padding” column_padding_tablet=”inherit” column_padding_phone=”inherit” column_padding_position=”all” column_element_direction_desktop=”default” column_element_spacing=”default” desktop_text_alignment=”default” tablet_text_alignment=”default” phone_text_alignment=”default” background_color_opacity=”1″ background_hover_color_opacity=”1″ column_backdrop_filter=”none” column_shadow=”none” column_border_radius=”none” column_link_target=”_self” overflow=”visible” gradient_direction=”left_to_right” overlay_strength=”0.3″ width=”1\/3″ tablet_width_inherit=”default” animation_type=”default” bg_image_animation=”none” border_type=”simple” column_border_width=”none” column_border_style=”solid”][fancy_box box_style=”color_box_hover” icon_family=”fontawesome” color=”accent-color” color_box_hover_overlay_opacity=”default” box_alignment=”center” enable_border=”true” border_radius=”default” image_loading=”default” icon_fontawesome=”fa fa-star” icon_size=”20″ min_height=”120″]\n

CVSS: <\/strong><\/h4>\n

Officially scored 5.5 (availability-only impact), though independent researchers argue the real-world severity given a working root exploit is closer to 7.8.[\/fancy_box][\/vc_column_inner][\/vc_row_inner][vc_row_inner column_margin=”default” column_direction=”default” column_direction_tablet=”default” column_direction_phone=”default” text_align=”left” row_position=”default” row_position_tablet=”inherit” row_position_phone=”inherit” overflow=”visible” pointer_events=”all”][vc_column_inner column_padding=”no-extra-padding” column_padding_tablet=”inherit” column_padding_phone=”inherit” column_padding_position=”all” column_element_direction_desktop=”default” column_element_spacing=”default” desktop_text_alignment=”default” tablet_text_alignment=”default” phone_text_alignment=”default” background_color_opacity=”1″ background_hover_color_opacity=”1″ column_backdrop_filter=”none” column_shadow=”none” column_border_radius=”none” column_link_target=”_self” overflow=”visible” gradient_direction=”left_to_right” overlay_strength=”0.3″ width=”1\/1″ tablet_width_inherit=”default” animation_type=”default” bg_image_animation=”none” border_type=”simple” column_border_width=”none” column_border_style=”solid”][split_line_heading animation_type=”line-reveal-by-space” font_style=”h3″ line_reveal_by_space_text_effect=”none” content_alignment=”default” mobile_content_alignment=”inherit” link_target=”_self” text_content=”What This Means For You:” text_direction=”default”][\/split_line_heading][vc_column_text css=”” text_direction=”default”]AlmaLinux and CloudLinux shared hosting is protected out of the box unless io_uring has deliberately been re-enabled. Ubuntu-based VPS or dedicated servers on the 22.04 HWE or 24.04 kernel line are exposed today with no confirmed vendor fix.[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][vc_row_inner column_margin=”default” column_direction=”default” column_direction_tablet=”default” column_direction_phone=”default” text_align=”left” row_position=”default” row_position_tablet=”inherit” row_position_phone=”inherit” overflow=”visible” pointer_events=”all”][vc_column_inner column_padding=”no-extra-padding” column_padding_tablet=”inherit” column_padding_phone=”inherit” column_padding_position=”all” column_element_direction_desktop=”default” column_element_spacing=”default” desktop_text_alignment=”default” tablet_text_alignment=”default” phone_text_alignment=”default” background_color_opacity=”1″ background_hover_color_opacity=”1″ column_backdrop_filter=”none” column_shadow=”none” column_border_radius=”none” column_link_target=”_self” overflow=”visible” gradient_direction=”left_to_right” overlay_strength=”0.3″ width=”1\/1″ tablet_width_inherit=”default” animation_type=”default” bg_image_animation=”none” border_type=”simple” column_border_width=”none” column_border_style=”solid”][split_line_heading animation_type=”line-reveal-by-space” font_style=”h3″ line_reveal_by_space_text_effect=”none” content_alignment=”default” mobile_content_alignment=”inherit” link_target=”_self” text_content=”Recommended Action:” text_direction=”default”][\/split_line_heading][vc_column_text css=”” text_direction=”default”]Check `sysctl kernel.io_uring_disabled` on AlmaLinux\/RHEL 9\/10 (should read 2). On Ubuntu, check your kernel version and watch for a Canonical update or a KernelCare live-patch.[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][\/vc_column][\/vc_row][vc_row type=”in_container” full_screen_row_position=”middle” column_margin=”default” column_direction=”default” column_direction_tablet=”default” column_direction_phone=”default” scene_position=”center” bottom_padding=”2%” text_color=”dark” text_align=”left” row_border_radius=”none” row_border_radius_applies=”bg” overflow=”visible” overlay_strength=”0.3″ gradient_direction=”left_to_right” shape_divider_position=”bottom” bg_image_animation=”none” gradient_type=”default” shape_type=””][vc_column column_padding=”no-extra-padding” column_padding_tablet=”inherit” column_padding_phone=”inherit” column_padding_position=”all” column_element_direction_desktop=”default” column_element_spacing=”default” desktop_text_alignment=”default” tablet_text_alignment=”default” phone_text_alignment=”default” background_color_opacity=”1″ background_hover_color_opacity=”1″ column_backdrop_filter=”none” column_shadow=”none” column_border_radius=”none” column_link_target=”_self” column_position=”default” gradient_direction=”left_to_right” overlay_strength=”0.3″ width=”1\/1″ tablet_width_inherit=”default” animation_type=”default” bg_image_animation=”none” border_type=”simple” column_border_width=”none” column_border_style=”solid”][vc_row_inner column_margin=”default” column_direction=”default” column_direction_tablet=”default” column_direction_phone=”default” text_align=”left” row_position=”default” row_position_tablet=”inherit” row_position_phone=”inherit” overflow=”visible” pointer_events=”all”][vc_column_inner column_padding=”no-extra-padding” column_padding_tablet=”inherit” column_padding_phone=”inherit” column_padding_position=”all” column_element_direction_desktop=”default” column_element_spacing=”default” desktop_text_alignment=”default” tablet_text_alignment=”default” phone_text_alignment=”default” background_color_opacity=”1″ background_hover_color_opacity=”1″ column_backdrop_filter=”none” column_shadow=”none” column_border_radius=”none” column_link_target=”_self” overflow=”visible” gradient_direction=”left_to_right” overlay_strength=”0.3″ width=”1\/1″ tablet_width_inherit=”default” animation_type=”default” bg_image_animation=”none” border_type=”simple” column_border_width=”none” column_border_style=”solid”][split_line_heading animation_type=”line-reveal-by-space” font_style=”h3″ line_reveal_by_space_text_effect=”none” content_alignment=”default” mobile_content_alignment=”inherit” link_target=”_self” text_content=”Frequently Asked Questions” text_direction=”default”][\/split_line_heading][divider line_type=”Full Width Line” line_thickness=”3″ divider_color=”default”][\/vc_column_inner][\/vc_row_inner][vc_row_inner column_margin=”default” column_direction=”default” column_direction_tablet=”default” column_direction_phone=”default” text_align=”left” row_position=”default” row_position_tablet=”inherit” row_position_phone=”inherit” overflow=”visible” pointer_events=”all”][vc_column_inner column_padding=”no-extra-padding” column_padding_tablet=”inherit” column_padding_phone=”inherit” column_padding_position=”all” column_element_direction_desktop=”default” column_element_spacing=”default” desktop_text_alignment=”default” tablet_text_alignment=”default” phone_text_alignment=”default” background_color_opacity=”1″ background_hover_color_opacity=”1″ column_backdrop_filter=”none” column_shadow=”none” column_border_radius=”none” column_link_target=”_self” overflow=”visible” gradient_direction=”left_to_right” overlay_strength=”0.3″ width=”1\/1″ tablet_width_inherit=”default” animation_type=”default” bg_image_animation=”none” border_type=”simple” column_border_width=”none” column_border_style=”solid”][split_line_heading animation_type=”line-reveal-by-space” font_style=”h3″ line_reveal_by_space_text_effect=”none” content_alignment=”default” mobile_content_alignment=”inherit” link_target=”_self” text_content=”Why were there so many Linux kernel vulnerabilities this week?” text_direction=”default”][\/split_line_heading]

<\/i> <\/div>
Three of this week’s four issues are Linux kernel local privilege escalation bugs, part of a broader pattern researchers have been tracking through 2026 of local-root and container-escape flaws in shared-kernel virtualisation and namespace features. It reflects increased research attention on this area rather than any single new class of bug. <\/div>
<\/div><\/div>[\/vc_column_inner][\/vc_row_inner][vc_row_inner column_margin=”default” column_direction=”default” column_direction_tablet=”default” column_direction_phone=”default” text_align=”left” row_position=”default” row_position_tablet=”inherit” row_position_phone=”inherit” overflow=”visible” pointer_events=”all”][vc_column_inner column_padding=”no-extra-padding” column_padding_tablet=”inherit” column_padding_phone=”inherit” column_padding_position=”all” column_element_direction_desktop=”default” column_element_spacing=”default” desktop_text_alignment=”default” tablet_text_alignment=”default” phone_text_alignment=”default” background_color_opacity=”1″ background_hover_color_opacity=”1″ column_backdrop_filter=”none” column_shadow=”none” column_border_radius=”none” column_link_target=”_self” overflow=”visible” gradient_direction=”left_to_right” overlay_strength=”0.3″ width=”1\/1″ tablet_width_inherit=”default” animation_type=”default” bg_image_animation=”none” border_type=”simple” column_border_width=”none” column_border_style=”solid”][split_line_heading animation_type=”line-reveal-by-space” font_style=”h3″ line_reveal_by_space_text_effect=”none” content_alignment=”default” mobile_content_alignment=”inherit” link_target=”_self” text_content=”Does this affect shared hosting or only VPS\/dedicated servers?” text_direction=”default”][\/split_line_heading]
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Shared hosting, VPS and dedicated servers can all be affected, depending on the specific issue and operating system. The kernel-level issues are most relevant to any environment where multiple accounts share the same underlying kernel, which is common across all three hosting types. <\/div>
<\/div><\/div>[\/vc_column_inner][\/vc_row_inner][vc_row_inner column_margin=”default” column_direction=”default” column_direction_tablet=”default” column_direction_phone=”default” text_align=”left” row_position=”default” row_position_tablet=”inherit” row_position_phone=”inherit” overflow=”visible” pointer_events=”all”][vc_column_inner column_padding=”no-extra-padding” column_padding_tablet=”inherit” column_padding_phone=”inherit” column_padding_position=”all” column_element_direction_desktop=”default” column_element_spacing=”default” desktop_text_alignment=”default” tablet_text_alignment=”default” phone_text_alignment=”default” background_color_opacity=”1″ background_hover_color_opacity=”1″ column_backdrop_filter=”none” column_shadow=”none” column_border_radius=”none” column_link_target=”_self” overflow=”visible” gradient_direction=”left_to_right” overlay_strength=”0.3″ width=”1\/1″ tablet_width_inherit=”default” animation_type=”default” bg_image_animation=”none” border_type=”simple” column_border_width=”none” column_border_style=”solid”][split_line_heading animation_type=”line-reveal-by-space” font_style=”h3″ line_reveal_by_space_text_effect=”none” content_alignment=”default” mobile_content_alignment=”inherit” link_target=”_self” text_content=”Do I need to do anything as a website owner?” text_direction=”default”][\/split_line_heading]
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These are infrastructure-level issues that your hosting provider is responsible for patching on the underlying server. Website owners on shared hosting do not need to take any direct action. If you manage your own VPS or dedicated server, please review the recommended actions above. <\/div>
<\/div><\/div>[\/vc_column_inner][\/vc_row_inner][vc_row_inner column_margin=”default” column_direction=”default” column_direction_tablet=”default” column_direction_phone=”default” text_align=”left” row_position=”default” row_position_tablet=”inherit” row_position_phone=”inherit” overflow=”visible” pointer_events=”all”][vc_column_inner column_padding=”no-extra-padding” column_padding_tablet=”inherit” column_padding_phone=”inherit” column_padding_position=”all” column_element_direction_desktop=”default” column_element_spacing=”default” desktop_text_alignment=”default” tablet_text_alignment=”default” phone_text_alignment=”default” background_color_opacity=”1″ background_hover_color_opacity=”1″ column_backdrop_filter=”none” column_shadow=”none” column_border_radius=”none” column_link_target=”_self” overflow=”visible” gradient_direction=”left_to_right” overlay_strength=”0.3″ width=”1\/1″ tablet_width_inherit=”default” animation_type=”default” bg_image_animation=”none” border_type=”simple” column_border_width=”none” column_border_style=”solid”][split_line_heading animation_type=”line-reveal-by-space” font_style=”h3″ line_reveal_by_space_text_effect=”none” content_alignment=”default” mobile_content_alignment=”inherit” link_target=”_self” text_content=”What’s the difference between these local kernel bugs and a typical “hacked website“ vulnerability?” text_direction=”default”][\/split_line_heading]
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The issues covered this week require local access to a server (for example, a shell account) rather than being exploitable remotely over the web. They are not the kind of vulnerability that leads to a defaced website or a stolen customer database on their own, but they matter because on shared infrastructure they can allow one account to affect others on the same server. <\/div>
<\/div><\/div>[\/vc_column_inner][\/vc_row_inner][vc_row_inner column_margin=”default” column_direction=”default” column_direction_tablet=”default” column_direction_phone=”default” text_align=”left” row_position=”default” row_position_tablet=”inherit” row_position_phone=”inherit” overflow=”visible” pointer_events=”all”][vc_column_inner column_padding=”no-extra-padding” column_padding_tablet=”inherit” column_padding_phone=”inherit” column_padding_position=”all” column_element_direction_desktop=”default” column_element_spacing=”default” desktop_text_alignment=”default” tablet_text_alignment=”default” phone_text_alignment=”default” background_color_opacity=”1″ background_hover_color_opacity=”1″ column_backdrop_filter=”none” column_shadow=”none” column_border_radius=”none” column_link_target=”_self” overflow=”visible” gradient_direction=”left_to_right” overlay_strength=”0.3″ width=”1\/1″ tablet_width_inherit=”default” animation_type=”default” bg_image_animation=”none” border_type=”simple” column_border_width=”none” column_border_style=”solid”][split_line_heading animation_type=”line-reveal-by-space” font_style=”h3″ line_reveal_by_space_text_effect=”none” content_alignment=”default” mobile_content_alignment=”inherit” link_target=”_self” text_content=”Why do some of these CVEs have old disclosure dates but are only being covered now?” text_direction=”default”][\/split_line_heading]
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Two of this week’s kernel issues (BadGarbage and VsockDrop) were originally disclosed months ago, but only became urgent this week when working public exploit code was released or independently confirmed. We cover that as fresh news because it materially changes the real-world risk for anyone still unpatched, even though the underlying flaw itself isn’t new. <\/div>
<\/div><\/div>[\/vc_column_inner][\/vc_row_inner][\/vc_column][\/vc_row][vc_row type=”in_container” full_screen_row_position=”middle” column_margin=”default” column_direction=”default” column_direction_tablet=”default” column_direction_phone=”default” scene_position=”center” text_color=”dark” text_align=”left” row_border_radius=”none” row_border_radius_applies=”bg” overflow=”visible” overlay_strength=”0.3″ gradient_direction=”left_to_right” shape_divider_position=”bottom” bg_image_animation=”none”][vc_column column_padding=”no-extra-padding” column_padding_tablet=”inherit” column_padding_phone=”inherit” column_padding_position=”all” column_element_direction_desktop=”default” column_element_spacing=”default” desktop_text_alignment=”default” tablet_text_alignment=”default” phone_text_alignment=”default” background_color_opacity=”1″ background_hover_color_opacity=”1″ column_backdrop_filter=”none” column_shadow=”none” column_border_radius=”none” column_link_target=”_self” column_position=”default” gradient_direction=”left_to_right” overlay_strength=”0.3″ width=”1\/1″ tablet_width_inherit=”default” animation_type=”default” bg_image_animation=”none” border_type=”simple” column_border_width=”none” column_border_style=”solid”][vc_row_inner column_margin=”default” column_direction=”default” column_direction_tablet=”default” column_direction_phone=”default” text_align=”left” row_position=”default” row_position_tablet=”inherit” row_position_phone=”inherit” overflow=”visible” pointer_events=”all”][vc_column_inner column_padding=”no-extra-padding” column_padding_tablet=”inherit” column_padding_phone=”inherit” column_padding_position=”all” column_element_direction_desktop=”default” column_element_spacing=”default” desktop_text_alignment=”default” tablet_text_alignment=”default” phone_text_alignment=”default” background_color_opacity=”1″ background_hover_color_opacity=”1″ column_backdrop_filter=”none” column_shadow=”none” column_border_radius=”none” column_link_target=”_self” overflow=”visible” gradient_direction=”left_to_right” overlay_strength=”0.3″ width=”1\/1″ tablet_width_inherit=”default” animation_type=”default” bg_image_animation=”none” border_type=”simple” column_border_width=”none” column_border_style=”solid”][split_line_heading animation_type=”line-reveal-by-space” font_style=”h3″ line_reveal_by_space_text_effect=”none” content_alignment=”default” mobile_content_alignment=”inherit” link_target=”_self” text_content=”Need Help? Get in Touch” text_direction=”default”][\/split_line_heading][vc_column_text css=”” text_direction=”default”]If you have questions about any of the issues covered in this summary, or need help checking your hosting environment, you can raise a support ticket via the Customer Area at heartinternet.uk, or chat with our live support team Monday to Friday, 09:30\u201316:00. You can also browse our knowledge base at heartinternet.uk\/support for step-by-step guides.<\/p>\n

We’re here to help keep your website secure.[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][\/vc_column][\/vc_row]\n","protected":false},"excerpt":{"rendered":"

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