RLSA-2026:38487

Source
https://errata.rockylinux.org/RLSA-2026:38487
Import Source
https://storage.googleapis.com/resf-osv-data/RLSA-2026:38487.json
JSON Data
https://api.test.osv.dev/v1/vulns/RLSA-2026:38487
Upstream
Published
2026-07-14T06:00:51.502823Z
Modified
2026-07-14T06:30:05.977615355Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
Important: xorg-x11-server security update
Details

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: xserver: X.org: glamor Font Atlas Heap Buffer Overflow (CVE-2026-55999)

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:8 / xorg-x11-server

Package

Name
xorg-x11-server
Purl
pkg:rpm/rocky-linux/xorg-x11-server?distro=rocky-linux-8&epoch=0

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0:1.20.11-28.el8_10.3
Database specific
{
    "yum_repository": "AppStream"
}

Database specific

source
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:38487.json"