CVE-2026-12374 Improper XPC caller certificate validation and TOCTOU race condition in macOS PrivilegedHelperTool

Improper certificate validation and a time-of-check time-of-use TOCTOU race condition in the PrivilegedHelperTool XPC service in Cato Client before v.5.13.1 on macOS allows a local authenticated attacker to escalate privileges to root via a self-signed certificate that bypasses the XPC caller...