ALSA-2026:82015
ALSA-2026:82015 · Important: xorg-x11-server security update
This page contains facts from public vulnerability sources. Check the original advisory before updating.
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: Privilege escalation via crafted RandR provider property requests (CVE-2026-93521) * xorg-x11-server: xwayland: xorg-x11-server: Arbitrary code execution via double-free in XKB geometry handling (CVE-2026-88812) * xorg-x11-server: xorg-x11-server: Out-of-bounds write via unvalidated modifier in ProcXIPassiveUngrabDevice (CVE-2026-93523) 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.
Fix available
- Published
- Updated
Stack: system
Affected products and versions
xorg-x11-server-xdmx AlmaLinux:9
- Affected ranges
- ECOSYSTEM: < 1.20.11-34.el9_8.4
Update to 1.20.11-34.el9_8.4
xorg-x11-server-xephyr AlmaLinux:9
- Affected ranges
- ECOSYSTEM: < 1.20.11-34.el9_8.4
Update to 1.20.11-34.el9_8.4
xorg-x11-server-xnest AlmaLinux:9
- Affected ranges
- ECOSYSTEM: < 1.20.11-34.el9_8.4
Update to 1.20.11-34.el9_8.4
xorg-x11-server-xorg AlmaLinux:9
- Affected ranges
- ECOSYSTEM: < 1.20.11-34.el9_8.4
Update to 1.20.11-34.el9_8.4
xorg-x11-server-xvfb AlmaLinux:9
- Affected ranges
- ECOSYSTEM: < 1.20.11-34.el9_8.4
Update to 1.20.11-34.el9_8.4
xorg-x11-server-common AlmaLinux:9
- Affected ranges
- ECOSYSTEM: < 1.20.11-34.el9_8.4
Update to 1.20.11-34.el9_8.4
xorg-x11-server-devel AlmaLinux:9
- Affected ranges
- ECOSYSTEM: < 1.20.11-34.el9_8.4
Update to 1.20.11-34.el9_8.4
xorg-x11-server-source AlmaLinux:9
- Affected ranges
- ECOSYSTEM: < 1.20.11-34.el9_8.4
Update to 1.20.11-34.el9_8.4
Original sources
- https://access.redhat.com/errata/RHSA-2026:82015
- https://access.redhat.com/security/cve/CVE-2026-88812
- https://access.redhat.com/security/cve/CVE-2026-93521
- https://access.redhat.com/security/cve/CVE-2026-93523
- https://bugzilla.redhat.com/2545164
- https://bugzilla.redhat.com/2545174
- https://bugzilla.redhat.com/2545177
- https://errata.almalinux.org/9/ALSA-2026-82015.html
- https://osv.dev/vulnerability/ALSA-2026:82015