{"id":"CVE-2026-40599","state":"PUBLISHED","title":"ClearanceKit: Ad-hoc signed binaries can spoof Apple process identities in the global allowlist","description":"ClearanceKit intercepts file-system access events on macOS and enforces per-process access policies. Prior to 5.0.5, ClearanceKit incorrectly treats a process with an empty Team ID and a non-empty Signing ID as an Apple platform binary. This bug allows a malicious software to impersonate an apple process in the global allowlist, and access all protected files. This vulnerability is fixed in 5.0.5.","publishedAt":"2026-04-21T17:37:05.064Z","updatedAt":"2026-04-21T18:35:04.258Z","severity":{"score":8.4,"label":"High","version":"4.0","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["craigjbass clearancekit"],"affected":[{"vendor":"craigjbass","product":"clearancekit","versions":[{"version":"< 5.0.5","status":"affected"}]}],"references":["https://github.com/craigjbass/clearancekit/security/advisories/GHSA-w253-42qp-5f2x"],"weaknesses":["CWE-863"],"ingestedAt":"2026-10-29T20:11:57.932Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/40xxx/CVE-2026-40599.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-40599","state":"PUBLISHED","datePublished":"2026-04-21T17:37:05.064Z","dateUpdated":"2026-04-21T18:35:04.258Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-04-14T14:07:59.641Z"},"containers":{"cna":{"title":"ClearanceKit: Ad-hoc signed binaries can spoof Apple process identities in the global allowlist","descriptions":[{"lang":"en","value":"ClearanceKit intercepts file-system access events on macOS and enforces per-process access policies. Prior to 5.0.5, ClearanceKit incorrectly treats a process with an empty Team ID and a non-empty Signing ID as an Apple platform binary. This bug allows a malicious software to impersonate an apple process in the global allowlist, and access all protected files. This vulnerability is fixed in 5.0.5."}],"affected":[{"vendor":"craigjbass","product":"clearancekit","versions":[{"version":"< 5.0.5","status":"affected"}]}],"references":[{"url":"https://github.com/craigjbass/clearancekit/security/advisories/GHSA-w253-42qp-5f2x","name":"https://github.com/craigjbass/clearancekit/security/advisories/GHSA-w253-42qp-5f2x","tags":["x_refsource_CONFIRM"]}],"metrics":[{"cvssV4_0":{"attackVector":"LOCAL","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":8.4,"baseSeverity":"HIGH","vectorString":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","version":"4.0"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-863","lang":"en","description":"CWE-863: Incorrect Authorization","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-04-21T17:37:05.064Z"},"source":{"advisory":"GHSA-w253-42qp-5f2x","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://github.com/craigjbass/clearancekit/security/advisories/GHSA-w253-42qp-5f2x","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-04-21T18:35:00.486516Z","id":"CVE-2026-40599","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-04-21T18:35:04.258Z"}}]}}}