Time-of-check Time-of-use (TOCTOU) Race Condition Affecting PackageKit/PackageKit package, versions [0.8.1,1.3.5)
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk IDSNYK-UNMANAGED-PACKAGEKITPACKAGEKIT-16323272
- published30 Apr 2026
- disclosed22 Apr 2026
- creditmsatdt
Introduced: 22 Apr 2026
CVE-2026-41651 (opens in a new tab)How to fix?
Upgrade PackageKit/PackageKit to version 1.3.5 or higher.
Overview
Affected versions of this package are vulnerable to Time-of-check Time-of-use (TOCTOU) Race Condition race condition vulnerability leads to arbitrary package installation as root. A flaw was found in PackageKit. A time-of-check time-of-use (TOCTOU) race condition on transaction flags allows unprivileged users to install packages as root, resulting in a local privilege escalation.