Vulnerability details
CVE-2026-33632
craigjbass clearancekit
ClearanceKit: opfilter policy bypass via exchangedata and clone operations
CVSS 4.0
8.4High
Official 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.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 8.4High | 4.0 | CVEProject cvelistV5 (CNA) (GitHub_M) | CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:L/SC:L/SI:N/SA:N |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| craigjbass | clearancekit | < 4.2.4 | CVEProject cvelistV5 (CNA) |
References and advisories
2
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Details
- Published
- 2026-03-26
- Last updated
- 2026-03-27
- State
- Published
- Assigner (CNA)
- GitHub_M
Exploit prediction (EPSS)
0.1%
Probability of exploitation in 30 days
1%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- None
- Technical impact
- Total
Weaknesses (CWE)
- CWE-862Missing Authorization