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CVE-2026-47133— ClearanceKit's signed policy tables lack monotonic counter, allowing replay of older legitimately-signed snapshots

Quick assessment

Affected
craigjbass clearancekit
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Craig J. Bass ClearanceKit是Craig J. Bass个人开发者开源的一个macOS文件系统访问控制工具。 Craig J. Bass ClearanceKit 5.0.10之前版本存在授权问题漏洞，该漏洞源于SQLite策略库存储中签名验证缺少版本计数器或新鲜度绑定，可能导致攻击者替换已捕获的合法签名快照。

AI Predicted 7.5 Difficulty: Moderate EPSS 0.15% · P4

Possible ATT&CK Techniques 1 AI

T1556 · Modify Authentication Process

Affected Version Matrix 1

VendorProduct Version RangeStatus
craigjbass clearancekit < 5.0.10 affected
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I. Basic Information for CVE-2026-47133

Vulnerability Information
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Vulnerability Title
ClearanceKit's signed policy tables lack monotonic counter, allowing replay of older legitimately-signed snapshots
Source: CVE Program / CVE List V5
Vulnerability Description
ClearanceKit intercepts file-system access events on macOS and enforces per-process access policies. Prior to version 5.0.10, each table in the on-disk SQLite policy store (`/Library/Application Support/clearancekit/store.db`) is verified using an ECDSA signature stored in the `data_signatures` table. The signed payload contains only the canonical row content, with no version counter or freshness binding. An attacker who can write `store.db` and the matching `data_signatures` row — feasible during the opfilter-update window when the Endpoint Security filter is offline, or via offline-boot / decrypted-backup scenarios — can substitute a previously-captured legitimately-signed snapshot. opfilter accepts the older snapshot as fully valid on next boot because the existing signatures still verify. Version 5.0.10 patches the issue.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:N/VI:H/VA:N/SC:H/SI:H/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
使用捕获-重放进行的认证绕过
Source: CVE Program / CVE List V5
Vulnerability Title
Craig J. Bass ClearanceKit 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Craig J. Bass ClearanceKit是Craig J. Bass个人开发者开源的一个macOS文件系统访问控制工具。 Craig J. Bass ClearanceKit 5.0.10之前版本存在授权问题漏洞，该漏洞源于SQLite策略库存储中签名验证缺少版本计数器或新鲜度绑定，可能导致攻击者替换已捕获的合法签名快照。
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 < 5.0.10 -

II. Public POCs for CVE-2026-47133

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III. Intelligence Information for CVE-2026-47133

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Vendor Advisories for CVE-2026-47133 (1)

IV. Related Vulnerabilities

Same product: clearancekit
Same vendor: craigjbass
Same weakness: CWE-294