{"id":"CVE-2026-45808","state":"PUBLISHED","title":"OpenBao's cross-namespace lease revocation via legacy sys/revoke path bypasses ACL","description":"OpenBao is an open source identity-based secrets management system. Prior to version 2.5.4, OpenBao's namespaces provide multi-tenant separation. A tenant who intentionally leaks lease identifiers can have their lease and underlying credential revoked or renewed by a user in another tenant via the legacy, undocumented `sys/revoke` and `sys/renew` endpoints. This is fixed in OpenBao v2.5.4.","publishedAt":"2026-08-07T21:15:00.733Z","updatedAt":"2026-08-13T18:42:47.586Z","severity":{"score":7.1,"label":"High","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["openbao openbao"],"affected":[{"vendor":"openbao","product":"openbao","versions":[{"version":"< 2.5.4","status":"affected"}]}],"references":["https://github.com/openbao/openbao/security/advisories/GHSA-v8v8-cm84-m686","https://github.com/openbao/openbao/pull/3152","https://github.com/openbao/openbao/commit/c0495646b41cea0e3f5a1030132e9cf5c2375b5c","https://github.com/openbao/openbao/releases/tag/v2.5.4"],"weaknesses":["CWE-863"],"ingestedAt":"2026-10-29T20:12:07.131Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/45xxx/CVE-2026-45808.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-45808","state":"PUBLISHED","datePublished":"2026-08-07T21:15:00.733Z","dateUpdated":"2026-08-13T18:42:47.586Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-05-13T08:19:32.604Z"},"containers":{"cna":{"title":"OpenBao's cross-namespace lease revocation via legacy sys/revoke path bypasses ACL","descriptions":[{"lang":"en","value":"OpenBao is an open source identity-based secrets management system. Prior to version 2.5.4, OpenBao's namespaces provide multi-tenant separation. A tenant who intentionally leaks lease identifiers can have their lease and underlying credential revoked or renewed by a user in another tenant via the legacy, undocumented `sys/revoke` and `sys/renew` endpoints. This is fixed in OpenBao v2.5.4."}],"affected":[{"vendor":"openbao","product":"openbao","versions":[{"version":"< 2.5.4","status":"affected"}]}],"references":[{"url":"https://github.com/openbao/openbao/security/advisories/GHSA-v8v8-cm84-m686","name":"https://github.com/openbao/openbao/security/advisories/GHSA-v8v8-cm84-m686","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/openbao/openbao/pull/3152","name":"https://github.com/openbao/openbao/pull/3152","tags":["x_refsource_MISC"]},{"url":"https://github.com/openbao/openbao/commit/c0495646b41cea0e3f5a1030132e9cf5c2375b5c","name":"https://github.com/openbao/openbao/commit/c0495646b41cea0e3f5a1030132e9cf5c2375b5c","tags":["x_refsource_MISC"]},{"url":"https://github.com/openbao/openbao/releases/tag/v2.5.4","name":"https://github.com/openbao/openbao/releases/tag/v2.5.4","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"HIGH","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":7.1,"baseSeverity":"HIGH","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/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":"2026-08-07T21:15:00.733Z"},"source":{"advisory":"GHSA-v8v8-cm84-m686","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-13T18:42:35.796521Z","id":"CVE-2026-45808","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-08-13T18:42:47.586Z"}}]}}}