CVE-2026-40604

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.

CVSS v3 4.4 MEDIUM

4.4^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 0.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/craigjbass/clearancekit/security/advisories/GHSA-5r9w-9fg6-266q	Vendor Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:a:craigjbass:clearancekit:*:*:*:*:*:*:*:*

cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*

History

24 Apr 2026, 20:49

Type	Values Removed	Values Added
References	~~() https://github.com/craigjbass/clearancekit/security/advisories/GHSA-5r9w-9fg6-266q -~~	() https://github.com/craigjbass/clearancekit/security/advisories/GHSA-5r9w-9fg6-266q - Vendor Advisory
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 4.4
CPE		cpe:2.3:a:craigjbass:clearancekit:::::::: cpe:2.3:o:apple:macos:-:::::::*
First Time		Apple macos Craigjbass clearancekit Apple Craigjbass

21 Apr 2026, 18:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-04-21 18:16

Updated : 2026-04-24 20:49

NVD link : CVE-2026-40604

Mitre link : CVE-2026-40604

CVE.ORG link : CVE-2026-40604

JSON object : View

Products Affected

craigjbass

clearancekit

apple

macos

CWE

CWE-693

Protection Mechanism Failure

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