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RLSA-2026:91223

Security Mirrored from RHSA-2026:91223
Issued at: 2026-10-30
Updated at: 2026-10-31

Advisory content derived from Red Hat RHSA-2026:91223, © Red Hat, Inc., used under CC BY 4.0, with modifications.

Synopsis

Important: libXtst security update



Description

X.Org X11 libXtst runtime library

Security Fix(es):

* libXtst: libXtst: Denial of Service via out-of-bounds read in RECORD reply parser (CVE-2026-94286)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.



Affected products

Rocky Linux 9 aarch64 Rocky Linux 9 ppc64le Rocky Linux 9 s390x Rocky Linux 9 x86_64

Fixes

2542377

CVEs

CVE-2026-94286

Affected packages

Rocky Linux 9 x86_64 - AppStream

libXtst-0:1.2.3-16.el9_8.1.i686.rpm libXtst-0:1.2.3-16.el9_8.1.src.rpm libXtst-0:1.2.3-16.el9_8.1.x86_64.rpm libXtst-debuginfo-0:1.2.3-16.el9_8.1.i686.rpm libXtst-debuginfo-0:1.2.3-16.el9_8.1.x86_64.rpm libXtst-debugsource-0:1.2.3-16.el9_8.1.i686.rpm libXtst-debugsource-0:1.2.3-16.el9_8.1.x86_64.rpm libXtst-devel-0:1.2.3-16.el9_8.1.i686.rpm libXtst-devel-0:1.2.3-16.el9_8.1.x86_64.rpm

Rocky Linux 9 aarch64 - AppStream

libXtst-0:1.2.3-16.el9_8.1.aarch64.rpm libXtst-0:1.2.3-16.el9_8.1.src.rpm libXtst-debuginfo-0:1.2.3-16.el9_8.1.aarch64.rpm libXtst-debugsource-0:1.2.3-16.el9_8.1.aarch64.rpm libXtst-devel-0:1.2.3-16.el9_8.1.aarch64.rpm

Rocky Linux 9 ppc64le - AppStream

libXtst-0:1.2.3-16.el9_8.1.ppc64le.rpm libXtst-0:1.2.3-16.el9_8.1.src.rpm libXtst-debuginfo-0:1.2.3-16.el9_8.1.ppc64le.rpm libXtst-debugsource-0:1.2.3-16.el9_8.1.ppc64le.rpm libXtst-devel-0:1.2.3-16.el9_8.1.ppc64le.rpm

Rocky Linux 9 s390x - AppStream

libXtst-0:1.2.3-16.el9_8.1.s390x.rpm libXtst-0:1.2.3-16.el9_8.1.src.rpm libXtst-debuginfo-0:1.2.3-16.el9_8.1.s390x.rpm libXtst-debugsource-0:1.2.3-16.el9_8.1.s390x.rpm libXtst-devel-0:1.2.3-16.el9_8.1.s390x.rpm