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CVE-2026-40599

Craigjbass Clearancekit broken access control

7.1 HIGHPublic exploitEPSS 0.15%
  1. Published21 Apr 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.

CVSS 3.1 breakdown

Attack vectorLocal
Attack complexityLow
Privileges requiredLow
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityNone
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Affected products

Craigjbass Clearancekit< 5.0.5

Remediation

Fixed in
Craigjbass Clearancekit≥ 5.0.5

References

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Frequently asked

Is CVE-2026-40599 being actively exploited?

CVE-2026-40599 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.15%.

How severe is CVE-2026-40599?

CVE-2026-40599 has a CVSS 3.1 base score of 7.1, rated high. EPSS estimates a 0.15% probability of exploitation.

Which products are affected by CVE-2026-40599?

Affected products include Craigjbass Clearancekit.

How do I fix CVE-2026-40599?

Upgrade affected software to a fixed version, for example Craigjbass Clearancekit 5.0.5 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-40599 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.