Ubuntu Security Notices USN-8212-1 USN-8212-1: authd vulnerability Publication date 27 April 2026 Overview authd could be made to escalate privileges. Releases 26.04 LTS Open side navigation Close side navigation Packages Details Update instructions References Packages authd - Authentication daemon for cloud-based identity provider Details It was discovered that authd incorrectly assigned the primary group ID to users under certain conditions. A local attacker could possibly use this issue to achieve privilege escalation, or gain unauthorized access to files belonging to other users. It was discovered that authd incorrectly assigned the primary group ID to users under certain conditions. A local attacker could possibly use this issue to achieve privilege escalation, or gain unauthorized access to files belonging to other users. Update instructions After a standard system update you need to restart authd to make all the necessary changes. Learn more about how to get the fixes. The problem can be corrected by updating your system to the following package versions: Ubuntu Release Package Version 26.04 LTS resolute authd – 0.6.1ubuntu0.1 Reduce your security exposure Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines. Get Ubuntu Pro References CVE-2026-6970 CVE-2026-6970