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.
Metrics
Affected Vendors & Products
References
History
Fri, 24 Apr 2026 21:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Apple
Apple macos |
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| CPEs | cpe:2.3:a:craigjbass:clearancekit:*:*:*:*:*:*:*:* cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:* |
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| Vendors & Products |
Apple
Apple macos |
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| Metrics |
cvssV3_1
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Wed, 22 Apr 2026 12:15:00 +0000
| Type | Values Removed | Values Added |
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| First Time appeared |
Craigjbass
Craigjbass clearancekit |
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| Vendors & Products |
Craigjbass
Craigjbass clearancekit |
Wed, 22 Apr 2026 00:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | 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. | |
| Title | ClearanceKit: opfilter system extension can be suspended or signalled by a root process, disabling file-access policy enforcement | |
| Weaknesses | CWE-693 | |
| References |
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| Metrics |
cvssV4_0
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Status: PUBLISHED
Assigner: GitHub_M
Published: 2026-04-21T17:41:53.580Z
Updated: 2026-04-21T20:36:53.181Z
Reserved: 2026-04-14T14:07:59.642Z
Link: CVE-2026-40604
Updated: 2026-04-21T19:55:06.310Z
Status : Analyzed
Published: 2026-04-21T18:16:51.977
Modified: 2026-04-24T20:49:22.970
Link: CVE-2026-40604
No data.