[ CVE-2026-109088 · Published 27 Oct 2026 ]

Vulnerability in X.org libXtst

CVSS 6.5 EPSS <1%No fix listed yet

[ Description ]Official description

A malicious X server could send malformed  RECORD EnableContext reolies that can cause a X client using the parse_reply_call_callback function in libXtst before 1.2.6 to enter a endless loop.

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.