Home / mailings [SECURITY] [DSA 6497-1] xorg-server security update
Posted on 12 September 2026
Debian Security Advisory- -------------------------------------------------------------------------
Debian Security Advisory DSA-6497-1 security@debian.org
https://www.debian.org/security/ Salvatore Bonaccorso
September 12, 2026 https://www.debian.org/security/faq
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Package : xorg-server
CVE ID : CVE-2026-55999 CVE-2026-56000
Debian Bug : 1141703
Several vulnerabilities were discovered in the Xorg X server, which may
result in privilege escalation if the X server is running privileged.
For the stable distribution (trixie), these problems have been fixed in
version 2:21.1.16-1.3+deb13u4.
We recommend that you upgrade your xorg-server packages.
For the detailed security status of xorg-server please refer to its
security tracker page at:
https://security-tracker.debian.org/tracker/xorg-server
Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/
Mailing list: debian-security-announce@lists.debian.org
