Time-of-check Time-of-use (TOCTOU) Race Condition in PackageKit - CVE-2026-41651

CSH
CYBERSECURITY HELP
Sign In REGISTER
 
Main Vulnerability Database Vulnerabilities #VU126937

Time-of-check Time-of-use (TOCTOU) Race Condition in PackageKit - CVE-2026-41651

Published: April 23, 2026


Vulnerability identifier: #VU126937
CSH Severity: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-41651
CWE-ID: CWE-367
Exploitation vector: Local access
Exploit availability: No public exploit available
Vulnerable software:
PackageKit
Software vendor:
Richard Hughes

Description

The vulnerability allows a local user to escalate privileges.

The vulnerability exists due to a time-of-check time-of-use race condition in PackageKit when installing packages. A local user can win a race condition to install arbitrary packages as root to escalate privileges.


Remediation

Install security update from vendor's website.

External links