What is GHSA-fp5r-grwm-x622?

GHSA-fp5r-grwm-x622 is a security advisory published by GitHub Security Advisories with High severity. A heap buffer overflow in handling GLX RenderLarge request where dataBytes exceeds cmdlen in X...

Which CVE IDs does GHSA-fp5r-grwm-x622 cover?

GHSA-fp5r-grwm-x622 covers the following CVE IDs: CVE-2026-93517. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

GHSA-fp5r-grwm-x622High

A heap buffer overflow in handling GLX RenderLarge request where dataBytes exceeds cmdlen in X...

Vendor

GitHub Security Advisories

Published

October 28, 2026

Last Modified

October 28, 2026

🔗 CVE IDs covered (1)

CVE-2026-93517 →

📋 Description

A heap buffer overflow in handling GLX RenderLarge request where dataBytes exceeds cmdlen in X.org X server before 21.1.25 and XWayland before 24.1.14 that could be be triggered by an authenticated X client could cause crashes or code execution in X server context.

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-93517
https://gitlab.freedesktop.org/xorg/xserver/-/commit/2abe4632d793314d3d5f28c19583fb76019f5ce4
https://github.com/advisories/GHSA-fp5r-grwm-x622