[SECURITY] [DSA 6497-1] xorg-server security update

------------------------------------------------------------------------- Debian Security Advisory DSA-6497-1 [email protected] https://www.debian.org/security/ Salvatore Bonaccorso September 12, 2026 https://www.debian.org/security/faq -...

Debian dsa-6497 : xnest - security update

The remote Debian 13 host has packages installed that are affected by multiple vulnerabilities as referenced in the dsa-6497 advisory. - ------------------------------------------------------------------------- Debian Security Advisory DSA-6497-1 [email protected] https://www.debian.org/securit...

Oracle Linux 9 : xorg-x11-server-Xwayland (ELSA-2026-38490)

The remote Oracle Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-38490 advisory. 24.1.9-4.3 - CVE fix for: CVE-2026-55999, CVE-2026-56000 Resolves: https://redhat.atlassian.net/browse/RHEL-191532 Resolves:...

xorg-x11-server-Xwayland security update

24.1.9-4.3 - CVE fix for: CVE-2026-55999, CVE-2026-56000 Resolves: https://redhat.atlassian.net/browse/RHEL-191532 Resolves: https://redhat.atlassian.net/browse/RHEL-191524...

xorg-x11-server-Xwayland security update

24.1.9-4.3 - CVE fix for: CVE-2026-55999, CVE-2026-56000 Resolves: https://redhat.atlassian.net/browse/RHEL-191518 Resolves: https://redhat.atlassian.net/browse/RHEL-191517...

Oracle Linux 10 : xorg-x11-server-Xwayland (ELSA-2026-38489)

The remote Oracle Linux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-38489 advisory. 24.1.9-4.3 - CVE fix for: CVE-2026-55999, CVE-2026-56000 Resolves: https://redhat.atlassian.net/browse/RHEL-191518 Resolves:...

AlmaLinux 9 : xorg-x11-server-Xwayland (ALSA-2026:38490)

The remote AlmaLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:38490 advisory. xorg: X11: xserver: X.org: glamor Font Atlas Heap Buffer Overflow CVE-2026-55999 X.org: xorg-x11-server: GLX contextTags Use-After-Free in...

Important: Red Hat Security Advisory: xorg-x11-server-Xwayland security update

An update for xorg-x11-server-Xwayland is now available for Red Hat Enterprise Linux 10.0 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating...

RHEL 10 : xorg-x11-server-Xwayland (RHSA-2026:50100)

The remote Redhat Enterprise Linux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:50100 advisory. Xwayland is an X server for running X clients under Wayland. Security Fixes: xorg: X11: xserver: X.org: glamor Font Atlas Heap Buffer...

Updated x11-server x11-server-xwayland tigervnc packages fix security vulnerabilities

The updated packages fix security vulnerabilities: glamor Font Atlas Heap Buffer Overflow. CVE-2026-55999 GLX contextTags Use-After-Free in CommonMakeCurrent. CVE-2026-56000...

Alibaba Cloud Linux 3 : 0211: xorg-x11-server-Xwayland (ALINUX3-SA-2026:0211)

The remote Alibaba Cloud Linux 3 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALINUX3-SA-2026:0211 advisory. Package updates are available for Alibaba Cloud Linux 3 that fix the following vulnerabilities: CVE-2026-55999: Local attackers with a X...

Important: xorg-x11-server-Xwayland

Issue Overview: glamor Font Atlas Heap Buffer Overflow CVE-2026-55999 GLX contextTags Use-After-Free in CommonMakeCurrent CVE-2026-56000 Affected Packages: xorg-x11-server-Xwayland Issue Correction: Run dnf update xorg-x11-server-Xwayland --releasever 2023.12.20260720 or dnf update --advisory...

xorg-x11-server-Xwayland security update

An update is available for xorg-x11-server-Xwayland. This update affects Rocky Linux 9. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list Xwayland is an X server for running X clients under Wayland...

RockyLinux 9 : xorg-x11-server-Xwayland (RLSA-2026:38490)

The remote RockyLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:38490 advisory. xorg: X11: xserver: X.org: glamor Font Atlas Heap Buffer Overflow CVE-2026-55999 X.org: xorg-x11-server: GLX contextTags Use-After-Free in...

Important: xorg-x11-server-Xwayland security update

Xwayland is an X server for running X clients under Wayland. Security Fixes: xorg: X11: xserver: X.org: glamor Font Atlas Heap Buffer Overflow CVE-2026-55999 X.org: xorg-x11-server: GLX contextTags Use-After-Free in CommonMakeCurrent CVE-2026-56000 For more details about the security issues,...

CVE-2026-56000 affecting package xorg-x11-server-Xwayland for versions less than 24.1.13-1

CVE-2026-56000 affecting package xorg-x11-server-Xwayland for versions less than 24.1.13-1. An upgraded version of the package is available that resolves this issue...

SUSE SLED15 / SLES15 Security Update : xwayland (SUSE-SU-2026:2787-1)

The remote SUSE Linux SLED15 / SLEDSAP15 / SLES15 / SLESSAP15 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:2787-1 advisory. This update for xwayland fixes the following issues - CVE-2026-55999: glamor Font Atlas Heap Buffer Overflow...

CVE-2026-56000 xorg-x11-server / xwayland GLX contextTags Use-After-Free in CommonMakeCurrent()

Local attackers with a X connection able to provide GLX commit to the X server xorg-server before 21.2.24 and xwayland before 24.1.13 could cause a Heap Use After Free, due to CommonMakeCurrent pointing into potentially reallocated memory...