What is GHSA-gxwv-p9wx-4gq4?

GHSA-gxwv-p9wx-4gq4 is a security advisory published by GitHub Security Advisories with High severity. A buffer overread caused by casting a negative integer to CARD32 in XvQueryImageAttributes in X...

Which CVE IDs does GHSA-gxwv-p9wx-4gq4 cover?

GHSA-gxwv-p9wx-4gq4 covers the following CVE IDs: CVE-2026-109903. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-gxwv-p9wx-4gq4?

GHSA-gxwv-p9wx-4gq4 has a CVSS v3 base score of 7.8, published by GitHub Security Advisories.

GHSA-gxwv-p9wx-4gq4HighCVSS 7.8

A buffer overread caused by casting a negative integer to CARD32 in XvQueryImageAttributes in X...

Vendor

GitHub Security Advisories

Published

November 13, 2026

Last Modified

November 13, 2026

🔗 CVE IDs covered (1)

CVE-2026-109903 →

📋 Description

A buffer overread caused by casting a negative integer to CARD32 in XvQueryImageAttributes in X.Org X Server before 21.1.26 and xwayland before 24.1.15 could be used to causes crashes by authenticated X clients.

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-109903
https://gitlab.freedesktop.org/xorg/xserver/-/commit/a11d070e4ea78c6c97a7e88c57277d766cd9050b
https://github.com/advisories/GHSA-gxwv-p9wx-4gq4