ClearanceKit: opfilter policy bypass via non-open file operations
ClearanceKit intercepts file-system access events on macOS and enforces per-process access policies. In versions on the 4.1 branch and earlier, the opfilter Endpoint Security system extension enforced file access policy exclusively by intercepting ES_EVENT_TYPE_AUTH_OPEN events. Seven additional file operation event ty…
Severity high: primary CNA CVSS 8.7 v3.1 (worst CNA-provided scenario) Not listed in this KEV snapshot. Forecast present in this snapshot.
Published 2026-03-26T19:30:30.379Z. Updated 2026-03-30T14:55:32.151Z.