ALSA-2026:99865: Moderate: xorg-x11-server security update
X.Org is an open-source implementation of the X Window System. It provides the basic low-level functionality that full-fledged graphical user interfaces are designed upon.
Security Fix(es):
xorg-x11-server: xorg-x11-server: arbitrary code execution via out-of-bounds write in XKB keycode handling (CVE-2026-93520)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
almalinux/xorg-x11-server-Xdmxto a version that resolves this vulnerability.Fixed in 1.20.11-28.el8_10.6 - Upgrade
Upgrade
almalinux/xorg-x11-server-Xephyrto a version that resolves this vulnerability.Fixed in 1.20.11-28.el8_10.6 - Upgrade
Upgrade
almalinux/xorg-x11-server-Xnestto a version that resolves this vulnerability.Fixed in 1.20.11-28.el8_10.6 - Upgrade
Upgrade
almalinux/xorg-x11-server-Xorgto a version that resolves this vulnerability.Fixed in 1.20.11-28.el8_10.6 - Upgrade
Upgrade
almalinux/xorg-x11-server-Xvfbto a version that resolves this vulnerability.Fixed in 1.20.11-28.el8_10.6 - Upgrade
Upgrade
almalinux/xorg-x11-server-commonto a version that resolves this vulnerability.Fixed in 1.20.11-28.el8_10.6 - Upgrade
Upgrade
almalinux/xorg-x11-server-develto a version that resolves this vulnerability.Fixed in 1.20.11-28.el8_10.6 - Upgrade
Upgrade
almalinux/xorg-x11-server-sourceto a version that resolves this vulnerability.Fixed in 1.20.11-28.el8_10.6
Event History
Frequently Asked Questions
Which AlmaLinux X.Org server components are included in this update?
The update covers xorg-x11-server-xdmx, xorg-x11-server-xephyr, xorg-x11-server-xnest, xorg-x11-server-xorg, xorg-x11-server-xvfb, xorg-x11-server-common, xorg-x11-server-devel, and xorg-x11-server-source.