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CVE-2026-50292

libinput: local privilege escalation via crafted uinput devices

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Severity

Moderate

Red Hat Product Security

6.7

CVSS 3.1

Review impact separately from score.

Published · June 5, 2026

Updated · July 23, 2026

Description

A flaw was found in libinput. A local attacker with access to /dev/uinput can inject arbitrary udev properties through the libinput-device-group helper. This injection can lead to root code execution, for example, by exploiting REMOVE_CMD properties that are executed when a device is removed. This vulnerability allows an attacker to gain elevated privileges on the system.

Statement

This CVE is rated Moderate since /dev/uinput permissions are restricted to root by default on Red Hat Enterprise Linux.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

Restrict access to /dev/uinput to trusted users only. This is the default on virtually all distributions but some packages install udev rules that allow a logged-in user to create uinput devices. Examples for this on Fedora are steam-device, antimicrox, kdeconnectd.

CVSS / CWE

CVSS 3.1 · 6.7
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

CWE-78 · Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')