Red Hat Security AdvisoryRHSA-2026:94482
libXtst security update
Released 2026-11-03 · Red Hat rating Important · View on Red Hat →
Fixed in
- Red Hat Enterprise Linux AppStream AUS (v.8.4) libXtst-1.2.3-7.el8_4.1, libXtst-devel-1.2.3-7.el8_4.1
- Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4) libXtst-1.2.3-7.el8_4.1, libXtst-devel-1.2.3-7.el8_4.1
Fixes 1 record
Priority LOW 31
An out-of-bounds read in libXtst's RECORD reply parser in libXtst before 1.2.6 could be used by malicious X servers to crash attached X clients.
CVSS 3.1HIGH 7.1· Network · No auth · User interaction · EPSS 0.00202 · Published 2026-09-28 · Partial fix · 1.2.6 CWE-126
