ParaShells: Parallels Desktop Turns Appliance Install Into a Root Shell
Your Mac runs a vulnerable version of Parallels Desktop. A malicious package, compromised CI job, or other unprivileged process is already running on it. No admin access. No Parallels-signed client. One appliance-install request later, attacker-controlled code runs as root. While testing Desktop 26.4.0 (build 57513) on Apple silicon, we found that an unprivileged local user could execute code as root through prl_disp_service.