{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-40264","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-04-10T17:31:45.787Z","datePublished":"2026-04-21T00:47:38.156Z","dateUpdated":"2026-04-21T19:30:51.975Z"},"containers":{"cna":{"title":"OpenBao's Token Store Allows Cross-Namespace Renewal, Revocation","problemTypes":[{"descriptions":[{"cweId":"CWE-1259","lang":"en","description":"CWE-1259: Improper Restriction of Security Token Assignment","type":"CWE"}]}],"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"}}],"references":[{"name":"https://github.com/openbao/openbao/security/advisories/GHSA-p49j-v9wc-wg57","tags":["x_refsource_CONFIRM"],"url":"https://github.com/openbao/openbao/security/advisories/GHSA-p49j-v9wc-wg57"}],"affected":[{"vendor":"openbao","product":"openbao","versions":[{"version":"< 2.5.3","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-04-21T00:47:38.156Z"},"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."}],"source":{"advisory":"GHSA-p49j-v9wc-wg57","discovery":"UNKNOWN"}},"adp":[{"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"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-04-21T19:30:51.975Z"}}]}}