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[gentoo-announce] [ GLSA 202608-14 ] X.Org X server, XWayland: Multiple Vulnerabilities

Posted on 17 August 2026
Gentoo-announce

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Gentoo Linux Security Advisory GLSA 202608-14
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https://security.gentoo.org/
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Severity: High
Title: X.Org X server, XWayland: Multiple Vulnerabilities
Date: August 17, 2026
Bugs: #958340, #965271, #972712, #976628, #978969
ID: 202608-14

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Synopsis
========
Multiple vulnerabilities have been found in X.Org X server, XWayland.

Background
==========
The X Window System is a graphical windowing system based on a
client/server model.

Affected packages
=================
Package Vulnerable Unaffected
-------------------- ------------ ------------
x11-base/xorg-server < 21.1.24 >= 21.1.24
x11-base/xwayland < 24.1.13 >= 24.1.13

Description
===========
Multiple vulnerabilities have been discovered in X.Org X server,
XWayland. Please review the CVE identifiers referenced below for
details.

Impact
======
Please review the referenced CVE identifiers for details.

Workaround
==========
There is no known workaround at this time.

Resolution
==========
All X.Org X server, XWayland users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=x11-base/xorg-server-21.1.24"

All X.Org X server, XWayland users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=x11-base/xwayland-24.1.13"

References
==========
[ 1 ] CVE-2025-49175
https://nvd.nist.gov/vuln/detail/CVE-2025-49175
[ 2 ] CVE-2025-49176
https://nvd.nist.gov/vuln/detail/CVE-2025-49176
[ 3 ] CVE-2025-49177
https://nvd.nist.gov/vuln/detail/CVE-2025-49177
[ 4 ] CVE-2025-49178
https://nvd.nist.gov/vuln/detail/CVE-2025-49178
[ 5 ] CVE-2025-49179
https://nvd.nist.gov/vuln/detail/CVE-2025-49179
[ 6 ] CVE-2025-49180
https://nvd.nist.gov/vuln/detail/CVE-2025-49180
[ 7 ] CVE-2025-62229
https://nvd.nist.gov/vuln/detail/CVE-2025-62229
[ 8 ] CVE-2025-62230
https://nvd.nist.gov/vuln/detail/CVE-2025-62230
[ 9 ] CVE-2025-62231
https://nvd.nist.gov/vuln/detail/CVE-2025-62231
[ 10 ] CVE-2026-33999
https://nvd.nist.gov/vuln/detail/CVE-2026-33999
[ 11 ] CVE-2026-34000
https://nvd.nist.gov/vuln/detail/CVE-2026-34000
[ 12 ] CVE-2026-34001
https://nvd.nist.gov/vuln/detail/CVE-2026-34001
[ 13 ] CVE-2026-34002
https://nvd.nist.gov/vuln/detail/CVE-2026-34002
[ 14 ] CVE-2026-34003
https://nvd.nist.gov/vuln/detail/CVE-2026-34003
[ 15 ] CVE-2026-50256
https://nvd.nist.gov/vuln/detail/CVE-2026-50256
[ 16 ] CVE-2026-50257
https://nvd.nist.gov/vuln/detail/CVE-2026-50257
[ 17 ] CVE-2026-50258
https://nvd.nist.gov/vuln/detail/CVE-2026-50258
[ 18 ] CVE-2026-50259
https://nvd.nist.gov/vuln/detail/CVE-2026-50259
[ 19 ] CVE-2026-50260
https://nvd.nist.gov/vuln/detail/CVE-2026-50260
[ 20 ] CVE-2026-50261
https://nvd.nist.gov/vuln/detail/CVE-2026-50261
[ 21 ] CVE-2026-50262
https://nvd.nist.gov/vuln/detail/CVE-2026-50262
[ 22 ] CVE-2026-50263
https://nvd.nist.gov/vuln/detail/CVE-2026-50263
[ 23 ] CVE-2026-55999
https://nvd.nist.gov/vuln/detail/CVE-2026-55999
[ 24 ] CVE-2026-56000
https://nvd.nist.gov/vuln/detail/CVE-2026-56000

Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

https://security.gentoo.org/glsa/202608-14

Concerns?
=========
Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users' machines is of utmost
importance to us. Any security concerns should be addressed to
security@gentoo.org or alternatively, you may file a bug at
https://bugs.gentoo.org.

License
=======
Copyright 2026 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).

The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.

https://creativecommons.org/licenses/by-sa/2.5
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