CVE-2026-40599: ClearanceKit intercepts file-system access events on macOS and enforces per-process access policies. Prior to 5.0.5…
CVE-2026-40599 · Severity: high · CVSS 7.1 · Published 2026-04-21
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.
No. Junglewise Threat Intelligence has no report of CVE-2026-40599 being exploited in the wild.
How severe is CVE-2026-40599?
High severity, with a CVSS score of 7.1, published 21 April 2026.
Which products and versions are affected?
Apple macOS, Craigjbass ClearanceKit. The advisory does not name versions.
Is there a fix for CVE-2026-40599?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
Am I affected by CVE-2026-40599?
Check whether you run Apple macOS or Craigjbass ClearanceKit. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.