AlmaLinux 9.2 [TuxCare] Security Update: xorg-x11-server-Xwayland / xorg-x11-server-Xwayland-devel Multiple Vulnerabilities (ALMALINUX9.2:CLSA-2026:1793286310)

The AlmaLinux 9.2 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare ALMALINUX9.2:CLSA-2026:1793286310 advisory. - A double free in XKB SetGeometryin X.Org X Server before 21.1.25 and X Wayland before 24.1.14 could be used by attached clients to...

Unity Linux 20.1050a / 20.1060a / 20.1070a Security Update: xorg-x11-server-Xwayland (UTSA-2026-147047)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-147047 advisory. A use-after-free flaw was found in the X.Org X server and Xwayland in SyncChangeCounter. A client that sets up multiple SyncCounters can trigger a use-after-free whe...

DEBIAN-CVE-2026-93523

A heap buffer overflow caused by a XIPassiveUngrabDevice request with an out-of-range modifier value in X.Org X Server before 21.1.15 and XWayland before 24.1.14 could be used by authenticated X clients to crash or potentially execute code in X server context...

AZL-112279 CVE-2026-93523 affecting package xorg-x11-server-Xwayland for versions less than 24.1.14-1

A heap buffer overflow caused by a XIPassiveUngrabDevice request with an out-of-range modifier value in X.Org X Server before 21.1.15 and XWayland before 24.1.14 could be used by authenticated X clients to crash or potentially execute code in X server context...

AZL-111503 CVE-2026-93536 affecting package wayland 1.22.0-1

A use after free caused by missing lifecycle management of gesture sprites in GestureBuildSprite in X.Org X Server before 21.1.25 and XWayland before 24.1.14 could be used by authenticated X clients to crash the X server or potentially execute code...

AZL-111464 CVE-2026-93523 affecting package xorg-x11-server 1.20.10-6

A heap buffer overflow caused by a XIPassiveUngrabDevice request with an out-of-range modifier value in X.Org X Server before 21.1.15 and XWayland before 24.1.14 could be used by authenticated X clients to crash or potentially execute code in X server context...

AZL-111497 CVE-2026-93523 affecting package wayland 1.22.0-1

A heap buffer overflow caused by a XIPassiveUngrabDevice request with an out-of-range modifier value in X.Org X Server before 21.1.15 and XWayland before 24.1.14 could be used by authenticated X clients to crash or potentially execute code in X server context...

DEBIAN-CVE-2026-93536

A use after free caused by missing lifecycle management of gesture sprites in GestureBuildSprite in X.Org X Server before 21.1.25 and XWayland before 24.1.14 could be used by authenticated X clients to crash the X server or potentially execute code...

CVE-2026-93523

A heap buffer overflow caused by a XIPassiveUngrabDevice request with an out-of-range modifier value in X.Org X Server before 21.1.15 and XWayland before 24.1.14 could be used by authenticated X clients to crash or potentially execute code in X server context...

CVE-2026-93536

A use after free caused by missing lifecycle management of gesture sprites in GestureBuildSprite in X.Org X Server before 21.1.25 and XWayland before 24.1.14 could be used by authenticated X clients to crash the X server or potentially execute code...

ALPINE-CVE-2026-93523

A heap buffer overflow caused by a XIPassiveUngrabDevice request with an out-of-range modifier value in X.Org X Server before 21.1.15 and XWayland before 24.1.14 could be used by authenticated X clients to crash or potentially execute code in X server context...

ALPINE-CVE-2026-93536

A use after free caused by missing lifecycle management of gesture sprites in GestureBuildSprite in X.Org X Server before 21.1.25 and XWayland before 24.1.14 could be used by authenticated X clients to crash the X server or potentially execute code...

AZL-111470 CVE-2026-93536 affecting package xorg-x11-server 1.20.10-6

A use after free caused by missing lifecycle management of gesture sprites in GestureBuildSprite in X.Org X Server before 21.1.25 and XWayland before 24.1.14 could be used by authenticated X clients to crash the X server or potentially execute code...

ALPINE-CVE-2026-93524

A buffer overread in CheckKeySyms in X.Org X Server before 21.1.25 and XWayland before 24.1.14 could be used by authenticated X clients to leak small amounts of information from X server memory or potentially crash the X server...

DEBIAN-CVE-2026-93524

A buffer overread in CheckKeySyms in X.Org X Server before 21.1.25 and XWayland before 24.1.14 could be used by authenticated X clients to leak small amounts of information from X server memory or potentially crash the X server...

CVE-2026-93524

A buffer overread in CheckKeySyms in X.Org X Server before 21.1.25 and XWayland before 24.1.14 could be used by authenticated X clients to leak small amounts of information from X server memory or potentially crash the X server...

CVE-2026-93536

A use after free caused by missing lifecycle management of gesture sprites in GestureBuildSprite in X.Org X Server before 21.1.25 and XWayland before 24.1.14 could be used by authenticated X clients to crash the X server or potentially execute code...

CVE-2026-93536

A use-after-free vulnerability exists in X.Org X Server (before 21.1.25) and XWayland (before 24.1.14) due to missing lifecycle management of gesture sprites in GestureBuildSprite(). An authenticated X client can trigger this by providing inputs that cause WindowGone() to fail in repairing touch ...

CVE-2026-93536 X.Org Server GestureBuildSprite Use-After-Free

A use after free caused by missing lifecycle management of gesture sprites in GestureBuildSprite in X.Org X Server before 21.1.25 and XWayland before 24.1.14 could be used by authenticated X clients to crash the X server or potentially execute code...

CVE-2026-93536

A use after free caused by missing lifecycle management of gesture sprites in GestureBuildSprite in X.Org X Server before 21.1.25 and XWayland before 24.1.14 could be used by authenticated X clients to crash the X server or potentially execute code...