Red Hat Security Advisory

RHSA-2026:79278

Red Hat Hardened Images RPMs Security Update

Released 2026-10-08 · Red Hat rating Moderate · View on Red Hat →

Fixed in

Red Hat Hardened Images libX11-1.8.13-3.1.hum1@aarch64, libX11-1.8.13-3.1.hum1@src, libX11-1.8.13-3.1.hum1@x86_64 +7

Fixes 3 records

TI-2026-63390 CVE-2026-94283 · GHSA-j5qx-6vm4-vfcj

Out-of-bounds read vulnerability in libX11's XIM (X Input Method) attribute parser

LOW 28

An out-of-bounds read vulnerability in libX11's XIM (X Input Method) attribute parser in libX11 before 1.8.14 could be used by malicious X servers to crash attached X clients.

CVSS 3.1MEDIUM 6.5 Network No auth User interaction EPSS 0.00213 Published 2026-09-28 Partial fix · 1.8.14 CWE-125

TI-2026-63391 CVE-2026-94284 · GHSA-5j4r-gpq7-9www

Out-of-bounds read vulnerability in libX11's XIM trigger-keyregistration parser.registration parser

LOW 24

An out-of-bounds read vulnerability in libX11's XIM trigger-key registration parser in libX11 before 1.8.14 could be used by malicious X servers to crash attached X clients.

CVSS 3.1MEDIUM 5.5 Local No auth User interaction EPSS 0.00132 Published 2026-09-28 Partial fix · 1.8.14 CWE-125

TI-2026-63392 CVE-2026-94285 · GHSA-f73h-qw9f-3h88

Out-of-bounds read in libX11's byte-oriented codeset parser

LOW 22

An out-of-bounds read in libX11's byte-oriented codeset parser in libX11 before 1.8.14 could be used by malicious X servers to crash attached X clients.

CVSS 3.1MEDIUM 5.1 Local No auth No interaction EPSS 0.00147 Published 2026-09-28 Partial fix · 1.8.14 CWE-125