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TI-2026-29005 Aliases CVE-2026-40191

ClearanceKit has a policy bypass via dual-path Endpoint Security events checking only source path

Priority LOW 31CWE-863Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Security bypass
Confidentiality · integrity · availability
None · High · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-863.

Summary

ClearanceKit intercepts file-system access events on macOS and enforces per-process access policies. Prior to 5.0.4-beta-1f46165, ClearanceKit's Endpoint Security event handler only checked the source path of dual-path file operations against File Access Authorization (FAA) rules and App Jail policies. The destination path was ignored entirely. This allowed any local process to bypass file-access protection by using rename, link, copyfile, exchangedata, or clone operations to place or replace files inside protected directories. This vulnerability is fixed in 5.0.4-beta-1f46165.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0011 1st percentileScored 2026-11-07
Fix Fixed clearancekit (craigjbass): 5.0.4-beta-1f46165

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
craigjbassclearancekitbefore 5.0.4-beta-1f461655.0.4-beta-1f46165Patch availableCNA
  • clearancekit Vendorcraigjbass Affected before 5.0.4-beta-1f46165 Fixed in 5.0.4-beta-1f46165 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:craigjbass:clearancekit:*:*:*:*:*:*:*:*——craigjbass
  • cpe:2.3:a:craigjbass:clearancekit:*:*:*:*:*:*:*:* Versions — — ·craigjbass

Remediation

  • Fix · CNA clearancekit (craigjbass) Fixed in 5.0.4-beta-1f46165

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-40191

References

Other 2

  • TI-2026-29335 ClearanceKit: Ad-hoc signed binaries can spoof Apple process identities in the global allowlist CVSS 4.0HIGH 8.4
  • TI-2026-26012 ClearanceKit: opfilter policy bypass via non-open file operations CVSS 3.1HIGH 8.7
  • TI-2026-26013 ClearanceKit: opfilter policy bypass via exchangedata and clone operations CVSS 4.0HIGH 8.4
  • TI-2026-29340 Protection mechanism failure in craigjbass clearancekit CVSS 4.0HIGH 8.2
  • TI-2026-34725 Incorrect permission assignment in craigjbass clearancekit CVSS 4.0MEDIUM 6.9
  • TI-2026-34724 ClearanceKit's signed policy tables lack monotonic counter, allowing replay of older legitimately-signed snapshots CVSS 4.0MEDIUM 6.9
See all 7 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences