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CVE-2026-93516

.Org Server XInput Passive Grab Use-After-Free

MEDIUM
5.5
CVSS Score
Published: October 28, 2026 at 01:03 PM UTC
Updated: October 28, 2026 at 02:07 PM UTC
2 products affected across 1 vendorXwaylandxorg-x11-server

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.2%

Description

A use-after-free caused by lack of lifecycle management when adding / removing XInput master devices 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 in X server context.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Xwayland· X Org
90%
All versions
xorg-x11-server· X Org
80%
All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

Patch
Source: cverecord
https://gitlab.freedesktop.org/xorg/xserver/-/commit/be572634158850fff4e9829cee88db08d30c9743

CVSS

5.5MEDIUMsuse
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusAWAITING ANALYSIS
CWE
CWE-416

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