CVE-2026-40599

HIGH

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

Title source: cna

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.

References (1)

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

Scores

CVSS v3 7.1

EPSS 0.0001

EPSS Percentile 2.0%

Attack Vector LOCAL

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

CISA SSVC

Vulnrichment

Exploitation poc

Automatable no

Technical Impact total

Details

CWE

CWE-863

Status published

Products (1)

craigjbass/clearancekit < 5.0.5 (2 CPE variants)

Published Apr 21, 2026

Tracked Since Apr 21, 2026