CVE-2026-93536
Published:October 28, 2026
Updated:November 04, 2026
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.
Affected Packages
xorg-xvfb-server (CONDA):
Affected version(s) >=21.1.23 <21.1.25Fix Suggestion:
Update to version 21.1.25xwayland (CONDA):
Affected version(s) =24.1.13 <24.1.14Fix Suggestion:
Update to version 24.1.14https://gitlab.freedesktop.org/xorg/xserver.git (SCM_GIT):
Affected version(s) >=xwayland-22.0.99.901 <xwayland-24.1.14 || >=xwayland-23.0.99.901 <xwayland-24.1.14 || >=xwayland-24.0.99.901 <xwayland-24.1.14Fix Suggestion:
Update to version xwayland-24.1.14https://gitlab.freedesktop.org/xorg/xserver.git (SCM_GIT):
Affected version(s) >=xwayland-26.0.99.901 <xwayland-26.0.99.903Fix Suggestion:
Update to version xwayland-26.0.99.903https://gitlab.freedesktop.org/xorg/xserver.git (SCM_GIT):
Affected version(s) >=xorg-server-26.0.99.901 <xorg-server-26.0.99.903Fix Suggestion:
Update to version xorg-server-26.0.99.903https://gitlab.freedesktop.org/xorg/xserver.git (SCM_GIT):
Affected version(s) >=xorg-server-21.0.99.1 <xorg-server-21.1.25Fix Suggestion:
Update to version xorg-server-21.1.25Related Resources (4)
Do you need more information?
Contact UsCVSS v4
Base Score:
5.8
Attack Vector
LOCAL
Attack Complexity
HIGH
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
NONE
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
5.3
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
HIGH
Weakness Type (CWE)
Heap-based Buffer Overflow
EPSS
Base Score:
0.17