CVE-2026-35093

Libinput: libinput: unauthorized code execution and information disclosure through lua bytecode plugins

HIGH
8.8
CVSS Score
Published: April 1, 2026 at 01:54 PM UTC
Updated: October 26, 2026 at 09:10 PM UTC
2 products affected across 2 vendorsFedoraLibinput

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Severity
HIGH8.8
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

A flaw was found in libinput. A local attacker who can place a specially crafted Lua bytecode file in certain system or user configuration directories can bypass security restrictions. This allows the attacker to run unauthorized code with the same permissions as the program using libinput, such as a graphical compositor. This could lead to the attacker monitoring keyboard input and sending that information to an external location.

Affected

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

v < 1.30.31.30.4 ≤ v < 1.31.1
Affected range stops below 1.30.3, so it looks safe — our inference, not a vendor statement
Affected range stops below 1.31.1, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (4)

VDB Entryx_refsource_REDHATThird Party Advisory
Source: cverecord
https://access.redhat.com/security/cve/CVE-2026-35093
Issue Trackingx_refsource_REDHATThird Party Advisory
Source: cverecord
https://bugzilla.redhat.com/show_bug.cgi?id=2453839

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.8HIGHredhat
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-94

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