What’s Vulnerable › Vulnerabilities

CVE-2026-40599: ClearanceKit: Ad-hoc signed binaries can spoof Apple process identities in the global allowlist

• Severity: high (CVSS 7.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-04-21 · updated 2026-10-26
• Weakness: CWE-863

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.

Affected products

• craigjbass clearancekit: before 5.0.5 — fixed in 5.0.5

How to fix

Upgrade to a fixed version: craigjbass clearancekit 5.0.5. Check the vendor advisory for mitigations.

References

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

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