What’s Vulnerable › Vulnerabilities

CVE-2026-33632: ClearanceKit: opfilter policy bypass via exchangedata and clone operations

• Severity: high (CVSS 7.8 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: none known
• Published: 2026-03-26 · updated 2026-06-17
• Weakness: CWE-862

Description

ClearanceKit intercepts file-system access events on macOS and enforces per-process access policies. Prior to version 4.2.4, two file operation event types — ES_EVENT_TYPE_AUTH_EXCHANGEDATA and ES_EVENT_TYPE_AUTH_CLONE — were not intercepted by ClearanceKit's opfilter system extension, allowing local processes to bypass file access policies. Commit 6181c4a patches the vulnerability by subscribing to both event types and routing them through the existing policy evaluator. Users must upgrade to v4.2.4 or later and reactivate the system extension.

Affected products

• craigjbass clearancekit: before 4.2.4 — fixed in 4.2.4

How to fix

Upgrade to a fixed version: craigjbass clearancekit 4.2.4. Check the vendor advisory for mitigations.

References

• https://github.com/craigjbass/clearancekit/commit/6181c4a22eccbeca973c77f4bd023eb795c13786
• https://github.com/craigjbass/clearancekit/security/advisories/GHSA-wpxj-vhfp-hhvm

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