CVE-2026-34218— ClearanceKit: Managed and user-defined policy rules not enforced between opfilter start and first policy modification
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I. Basic Information for CVE-2026-34218
Vulnerability Information
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Vulnerability Title
ClearanceKit: Managed and user-defined policy rules not enforced between opfilter start and first policy modification
Source: NVD (National Vulnerability Database)
Vulnerability Description
ClearanceKit intercepts file-system access events on macOS and enforces per-process access policies. Prior to version 4.2.14, two related startup defects created a window during which only the single compile-time baseline rule was enforced by opfilter. All managed (MDM-delivered) and user-defined file-access rules were not applied until the user interacted with policies through the GUI, triggering a policy mutation over XPC. This issue has been patched in version 4.2.14.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
特权管理不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
ClearanceKit 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
ClearanceKit是Craig J. Bass个人开发者的一个macOS文件系统访问控制工具。 ClearanceKit 4.2.14之前版本存在安全漏洞，该漏洞源于启动缺陷导致访问策略未完全加载，可能导致访问控制不当。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| craigjbass | clearancekit | < 4.2.14 | - |
II. Public POCs for CVE-2026-34218
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|---|
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Advisory · 1
IV. Related Vulnerabilities
Same product: clearancekit
- CVE-2026-40604
ClearanceKit: opfilter system extension can be suspended or - CVE-2026-40599
ClearanceKit: Ad-hoc signed binaries can spoof Apple process - CVE-2026-40191
ClearanceKit has a policy bypass via dual-path Endpoint Secu - CVE-2026-33632
ClearanceKit: opfilter policy bypass via exchangedata and cl - CVE-2026-33631
ClearanceKit: opfilter policy bypass via non-open file opera
Same vendor: craigjbass
- CVE-2026-40604
ClearanceKit: opfilter system extension can be suspended or - CVE-2026-40599
ClearanceKit: Ad-hoc signed binaries can spoof Apple process - CVE-2026-40191
ClearanceKit has a policy bypass via dual-path Endpoint Secu - CVE-2026-33632
ClearanceKit: opfilter policy bypass via exchangedata and cl - CVE-2026-33631
ClearanceKit: opfilter policy bypass via non-open file opera
Same weakness: CWE-269
- CVE-2026-8719
AI Engine 3.4.9 - Authenticated (Subscriber+) Privilege Esca - CVE-2026-45395
Open WebUI: Missing `workspace.tools` Authorization Check on - CVE-2026-45675
Open WebUI: LDAP and OAuth First-User Race Condition Allows - CVE-2026-6228
Frontend Admin by DynamiApps <= 3.28.36 - Unauthenticated Pr - CVE-2025-62625
AMD Processors 安全漏洞
V. Comments for CVE-2026-34218
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