Out-of-bounds Read The advisory has been revoked - it doesn't affect any version of package xorg-x11-server (opens in a new tab)

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Snyk IDSNYK-RHEL8-XORGX11SERVER-17223530
published7 Jun 2026
disclosed2 Jun 2026

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Introduced: 2 Jun 2026

CVE-2026-50262 (opens in a new tab) CWE-125 (opens in a new tab)

Amendment

The Red Hat security team deemed this advisory irrelevant for RHEL:8.

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 RHEL.

An out-of-bounds read flaw was found in the X.Org X server and Xwayland in __glXDisp_ChangeDrawableAttributes(). A wrong size validation check can read a client-controlled number of bytes, exceeding the request buffer, leading to information disclosure. A write path also exists but requires byte-swapped clients which is disabled by default.