RLSA-2026:11369

Source
https://errata.rockylinux.org/RLSA-2026:11369
Import Source
https://storage.googleapis.com/resf-osv-data/RLSA-2026:11369.json
JSON Data
https://api.test.osv.dev/v1/vulns/RLSA-2026:11369
Upstream
  • CVE-2026-33999
  • CVE-2026-34001
  • CVE-2026-34003
Published
2026-04-29T18:03:33.664574Z
Modified
2026-04-29T18:25:48.701944Z
Severity
  • 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
Important: xorg-x11-server-Xwayland security update
Details

Xwayland is an X server for running X clients under Wayland.

Security Fix(es):

  • xorg: xwayland: X.Org X server: Denial of Service via integer underflow in XKB compatibility map handling (CVE-2026-33999)

  • xorg: xwayland: X.Org X server: Use-after-free vulnerability leads to server crash and potential memory corruption (CVE-2026-34001)

  • xorg: xwayland: X.Org X server: Information exposure and denial of service via out-of-bounds memory access (CVE-2026-34003)

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.

References
Credits
    • Rocky Enterprise Software Foundation
    • Red Hat

Affected packages

Rocky Linux:9 / xorg-x11-server-Xwayland

Package

Name
xorg-x11-server-Xwayland
Purl
pkg:rpm/rocky-linux/xorg-x11-server-Xwayland?distro=rocky-linux-9&epoch=0

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0:23.2.7-6.el9_7
Database specific
{
    "yum_repository": "AppStream"
}

Database specific

source
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:11369.json"