Use After Free Affecting xorg-x11-server package, versions <0:1.20.11-28.el8_10.5


Severity

Recommended
high

Based on Rocky Linux security rating.

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  • Snyk IDSNYK-ROCKY8-XORGX11SERVER-21760915
  • published28 Oct 2026
  • disclosed28 Oct 2026

Introduced: 28 Oct 2026

NewCVE-2026-93516  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade Rocky-Linux:8 xorg-x11-server to version 0:1.20.11-28.el8_10.5 or higher.
This issue was patched in RLSA-2026:89747.

NVD Description

Note: Versions mentioned in the description apply only to the upstream xorg-x11-server package and not the xorg-x11-server package as distributed by Rocky-Linux. See How to fix? for Rocky-Linux:8 relevant fixed versions and status.

A use-after-free caused by lack of lifecycle management when adding / removing XInput master devices in X.org X Server before 21.1.25 and XWayland before 24.1.14 could be used by authenticated X Clients to crash the X server or potentially execute code in X server context.

CVSS Base Scores

version 3.1