Ubuntu's Snap Affected By Local Privilege Escalation Vulnerability

Last week it was security issues with AppArmor to worry about on Ubuntu Linux while this week a "high" rated vulnerability for Ubuntu's Snap daemon has been revealed.

CVE-2026-3888 was made public yesterday as a local privilege escalation affecting Snapd on ubuntu. Those with local user access can obtain root privileges by recreating Snap's private /tmp directory when systemd-tmpfiles is enabled.