{"id":"CVE-2026-40264","state":"PUBLISHED","title":"OpenBao's Token Store Allows Cross-Namespace Renewal, Revocation","description":"OpenBao is an open source identity-based secrets management system. OpenBao's namespaces provide multi-tenant separation. Prior to version 2.5.3, a tenant who leaks token accessors can have their token revoked or renewed by a privileged administrator in another tenant. This is addressed in v2.5.3.","publishedAt":"2026-04-21T00:47:38.156Z","updatedAt":"2026-04-21T19:30:51.975Z","severity":{"score":2,"label":"Low","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["openbao openbao"],"affected":[{"vendor":"openbao","product":"openbao","versions":[{"version":"< 2.5.3","status":"affected"}]}],"references":["https://github.com/openbao/openbao/security/advisories/GHSA-p49j-v9wc-wg57"],"weaknesses":["CWE-1259"],"ingestedAt":"2026-10-29T20:11:57.932Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/40xxx/CVE-2026-40264.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-40264","state":"PUBLISHED","datePublished":"2026-04-21T00:47:38.156Z","dateUpdated":"2026-04-21T19:30:51.975Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-04-10T17:31:45.787Z"},"containers":{"cna":{"title":"OpenBao's Token Store Allows Cross-Namespace Renewal, Revocation","descriptions":[{"lang":"en","value":"OpenBao is an open source identity-based secrets management system. OpenBao's namespaces provide multi-tenant separation. Prior to version 2.5.3, a tenant who leaks token accessors can have their token revoked or renewed by a privileged administrator in another tenant. This is addressed in v2.5.3."}],"affected":[{"vendor":"openbao","product":"openbao","versions":[{"version":"< 2.5.3","status":"affected"}]}],"references":[{"url":"https://github.com/openbao/openbao/security/advisories/GHSA-p49j-v9wc-wg57","name":"https://github.com/openbao/openbao/security/advisories/GHSA-p49j-v9wc-wg57","tags":["x_refsource_CONFIRM"]}],"metrics":[{"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"PRESENT","privilegesRequired":"HIGH","userInteraction":"PASSIVE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"LOW","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":2,"baseSeverity":"LOW","vectorString":"CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","version":"4.0"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-1259","lang":"en","description":"CWE-1259: Improper Restriction of Security Token Assignment","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-04-21T00:47:38.156Z"},"source":{"advisory":"GHSA-p49j-v9wc-wg57","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-04-21T19:30:42.448978Z","id":"CVE-2026-40264","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":"2026-04-21T19:30:51.975Z"}}]}}}