Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update

Fixed packages 2

Vulnerabilities 1

• High 7.1
  CVE-2026-94286

  Out-of-bounds read in libXtst's RECORD reply parser

  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.

  X.Org libXtst libxtst libxtst Debian Ubuntu Azure Linux Alpine
  Sep 28, 2026

References

• report
  https://access.redhat.com/security/cve/CVE-2026-94286
• article
  https://access.redhat.com/security/updates/classification/
• article
  https://images.redhat.com/
• advisory
  https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_79192.json
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2542377
• advisory
  https://www.cve.org/CVERecord?id=CVE-2026-94286
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2026-94286
• article
  https://gitlab.freedesktop.org/xorg/lib/libxtst/-/merge_requests/10/diffs?commit_id=16023c86070e6af9407330deea3938fcef75815b