CVE-2021-3747

The MacOS version of Multipass, version 1.7.0, fixed in 1.7.2, accidentally installed the application directory with incorrect owner.

CVE-2021-3626

The Windows version of Multipass before 1.7.0 allowed any local process to connect to the localhost TCP control socket to perform mounts from the operating system to a guest, allowing for privilege escalation.

CVE-2025-5199

In Canonical Multipass up to and including version 1.15.1 on macOS, incorrect default permissions allow a local attacker to escalate privileges by modifying files executed with administrative privileges by a Launch Daemon during system startup.