CVE-2026-40599

ClearanceKit: Ad-hoc signed binaries can spoof Apple process identities in the global allowlist

State: Published
Severity: 8.4 High
Published: Apr 21, 2026
Updated: Apr 21, 2026
Reserved: Apr 14, 2026

Description

ClearanceKit intercepts file-system access events on macOS and enforces per-process access policies. Prior to 5.0.5, ClearanceKit incorrectly treats a process with an empty Team ID and a non-empty Signing ID as an Apple platform binary. This bug allows a malicious software to impersonate an apple process in the global allowlist, and access all protected files. This vulnerability is fixed in 5.0.5.

Scores

CVSS	Score	Vector	Source
4.0	8.4 High	CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N	GitHub_M

Weaknesses

CWE-863 Incorrect Authorization

Affected Products

Product	Versions
clearancekitcraigjbass	< 5.0.5Affected

References

https://github.com/craigjbass/clearancekit/security/advisories/GHSA-w253-42qp-5f2x

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