Out-of-bounds Read Affecting xorg-server package, versions <21.1.22-r0


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.25% (17th percentile)

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  • Snyk IDSNYK-ALPINE323-XORGSERVER-16084296
  • published16 Apr 2026
  • disclosed23 Apr 2026

Introduced: 16 Apr 2026

CVE-2026-34003  (opens in a new tab)
CWE-125  (opens in a new tab)

How to fix?

Upgrade Alpine:3.23 xorg-server to version 21.1.22-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream xorg-server package and not the xorg-server package as distributed by Alpine. See How to fix? for Alpine:3.23 relevant fixed versions and status.

A flaw was found in the X.Org X server's XKB key types request validation. A local attacker could send a specially crafted request to the X server, leading to an out-of-bounds memory access vulnerability. This could result in the disclosure of sensitive information or cause the server to crash, leading to a Denial of Service (DoS). In certain configurations, higher impact outcomes may be possible.

References

CVSS Base Scores

version 3.1