SB2026042989 - Ubuntu update for packagekit
Published: April 29, 2026
Security Bulletin ID
SB2026042989
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Time-of-check Time-of-use (TOCTOU) Race Condition (CVE-ID: CVE-2026-41651)
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 update from vendor's website.