What is GHSA-prmg-8fm6-8p8h?

GHSA-prmg-8fm6-8p8h is a security advisory published by GitHub Security Advisories with High severity. A double free in XKB SetGeometryin X.Org X Server before 21.1.25 and X Wayland before 24.1.14...

Which CVE IDs does GHSA-prmg-8fm6-8p8h cover?

GHSA-prmg-8fm6-8p8h covers the following CVE IDs: CVE-2026-88812. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-prmg-8fm6-8p8h?

GHSA-prmg-8fm6-8p8h has a CVSS v3 base score of 7.8, published by GitHub Security Advisories.

GHSA-prmg-8fm6-8p8hHighCVSS 7.8

A double free in XKB SetGeometryin X.Org X Server before 21.1.25 and X Wayland before 24.1.14...

Vendor

GitHub Security Advisories

Published

October 27, 2026

Last Modified

October 27, 2026

🔗 CVE IDs covered (1)

CVE-2026-88812 →

📋 Description

A double free in XKB SetGeometryin X.Org X Server before 21.1.25 and X Wayland before 24.1.14 could be used by attached clients to cause a crash or potentially code in the x server context.

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-88812
https://gitlab.freedesktop.org/xorg/xserver/-/commit/0d1b1b0bad86c9ea2a3b7ca5a70e681dc69f1ecc
https://github.com/advisories/GHSA-prmg-8fm6-8p8h