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 …
Published: 2026-07-01 · CVSS: 6.4 · CVSS 4.0
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 verification and a symlink swap during package installation.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7