Multiple security issues have been identified in the X.Org X11 libXtst runtime library, leading to the release of security fixes. The vulnerability, tracked as CVE-2026-109088, affects versions prior to 1.2.4-4.oe2403sp4. The flaw does not impact confidentiality or integrity but can cause an availability impact. A patch is available in version 1.2.4-4.oe2403sp4.