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CVE-2026-40604

ClearanceKit: opfilter system extension can be suspended or signalled by a root process, disabling file-access policy enforcement PUBLISHED

Description (CNA)

ClearanceKit intercepts file-system access events on macOS and enforces per-process access policies. Prior to 5.0.6, the opfilter Endpoint Security system extension (bundle ID uk.craigbass.clearancekit.opfilter) can be suspended with SIGSTOP or kill -STOP, or killed with SIGKILL/SIGTERM, by any process running as root. While the extension is suspended, all AUTH Endpoint Security events time out and default to allow, silently disabling ClearanceKit's file-access policy enforcement for the duration of the suspension. This vulnerability is fixed in 5.0.6.

Affected (CNA)

Vendor / productVersions
craigjbass / clearancekitaffected < 5.0.6

CWE

CWE-693

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.