CVE-2026-33632

HIGH

ClearanceKit: opfilter policy bypass via exchangedata and clone operations

Title source: cna
STIX 2.1

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.

References (2)

Core 2

Scores

CVSS v3 7.8
EPSS 0.0010
EPSS Percentile 1.1%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-862
Status published
Products (1)
craigjbass/clearancekit < 4.2.4 (2 CPE variants)
Published Mar 26, 2026
Tracked Since Mar 27, 2026