What is GHSA-5h3m-pr22-58xf?

GHSA-5h3m-pr22-58xf is a security advisory published by GitHub Security Advisories with High severity. A heap buffer overflow caused by mismatched size usage in CopyArea CPU-to-FBO path in X.Org X...

Which CVE IDs does GHSA-5h3m-pr22-58xf cover?

GHSA-5h3m-pr22-58xf covers the following CVE IDs: CVE-2026-93522. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-5h3m-pr22-58xf?

GHSA-5h3m-pr22-58xf has a CVSS v3 base score of 7.8, published by GitHub Security Advisories.

GHSA-5h3m-pr22-58xfHighCVSS 7.8

A heap buffer overflow caused by mismatched size usage in CopyArea CPU-to-FBO path in X.Org X...

Vendor

GitHub Security Advisories

Published

October 28, 2026

Last Modified

October 28, 2026

🔗 CVE IDs covered (1)

CVE-2026-93522 →

📋 Description

A heap buffer overflow caused by mismatched size usage in CopyArea CPU-to-FBO path in X.Org X Server before 21.1.15 and XWayland before 24.1.14 could be used by authenticated X clients to crash or potentially execute code in the X server context.

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-93522
https://gitlab.freedesktop.org/xorg/xserver/-/commit/ad26c26bf795e6464f74c8ef5bb1d41403d877ab
https://github.com/advisories/GHSA-5h3m-pr22-58xf