{"id":"CVE-2026-40264","summary":"OpenBao's Token Store Allows Cross-Namespace Renewal, Revocation","details":"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.","aliases":["GHSA-p49j-v9wc-wg57"],"modified":"2026-04-24T12:16:06.082874Z","published":"2026-04-21T00:47:38.156Z","related":["CGA-c2g4-7fvq-w3vm","openSUSE-SU-2026:10594-1"],"database_specific":{"cwe_ids":["CWE-1259"],"cna_assigner":"GitHub_M","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/40xxx/CVE-2026-40264.json"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/40xxx/CVE-2026-40264.json"},{"type":"ADVISORY","url":"https://github.com/openbao/openbao/security/advisories/GHSA-p49j-v9wc-wg57"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-40264"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/openbao/openbao","events":[{"introduced":"0"},{"fixed":"988c88d7ef54b4d4581629b229488dfba5e085ba"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"fixed":"2.5.3"}],"source":"AFFECTED_FIELD"}}],"versions":["api/auth/approle/v0.1.0","api/auth/approle/v0.1.1","api/auth/approle/v0.2.0","api/auth/approle/v0.3.0","api/auth/approle/v0.4.0","api/auth/approle/v0.4.1","api/auth/approle/v1.1.0-development20240408","api/auth/approle/v2.0.1","api/auth/approle/v2.2.0","api/auth/approle/v2.3.0","api/auth/approle/v2.4.0","api/auth/approle/v2.5.0","api/auth/approle/v2.5.1","api/auth/aws/v0.1.0","api/auth/aws/v0.2.0","api/auth/aws/v0.3.0","api/auth/aws/v0.4.0","api/auth/aws/v0.4.1","api/auth/aws/v1.1.0-development20240408","api/auth/azure/v0.1.0","api/auth/azure/v0.2.0","api/auth/azure/v0.3.0","api/auth/azure/v0.4.0","api/auth/azure/v0.4.1","api/auth/azure/v1.1.0-development20240408","api/auth/gcp/v0.1.0","api/auth/gcp/v0.2.0","api/auth/gcp/v0.3.0","api/auth/gcp/v0.4.0","api/auth/gcp/v0.4.1","api/auth/gcp/v1.1.0-development20240408","api/auth/jwt/v2.4.0","api/auth/jwt/v2.5.0","api/auth/jwt/v2.5.1","api/auth/kubernetes/v1.1.0-development20240408","api/auth/kubernetes/v2.0.1","api/auth/kubernetes/v2.2.0","api/auth/kubernetes/v2.3.0","api/auth/kubernetes/v2.4.0","api/auth/kubernetes/v2.5.0","api/auth/kubernetes/v2.5.1","api/auth/ldap/v1.1.0-development20240408","api/auth/ldap/v2.0.1","api/auth/ldap/v2.2.0","api/auth/ldap/v2.3.0","api/auth/ldap/v2.4.0","api/auth/ldap/v2.5.0","api/auth/ldap/v2.5.1","api/auth/userpass/v0.1.0","api/auth/userpass/v0.2.0","api/auth/userpass/v0.3.0","api/auth/userpass/v0.4.0","api/auth/userpass/v0.4.1","api/auth/userpass/v1.1.0-development20240408","api/auth/userpass/v2.0.1","api/auth/userpass/v2.2.0","api/auth/userpass/v2.3.0","api/auth/userpass/v2.4.0","api/auth/userpass/v2.5.0","api/auth/userpass/v2.5.1","api/v1.0.1","api/v1.0.2","api/v1.0.3","api/v1.0.4","api/v1.1.1","api/v1.100.0-development20240408","api/v1.2.0","api/v1.3.1","api/v1.5.0","api/v1.6.0","api/v1.7.0","api/v1.7.1","api/v1.7.2","api/v1.8.0","api/v1.8.1","api/v1.8.2","api/v1.8.3","api/v1.9.0","api/v1.9.1","api/v1.9.2","api/v2.0.1","api/v2.1.0","api/v2.2.0","api/v2.3.0","api/v2.4.0","api/v2.5.0","api/v2.5.1","before-plugin-removal","dev-namespaces-base-20250215","dev-namespaces-base-20250311","dev-namespaces-base-20250424","sdk/v0.1.10","sdk/v0.1.11","sdk/v0.1.12","sdk/v0.1.13","sdk/v0.1.8","sdk/v0.1.9","sdk/v0.2.1","sdk/v0.3.0","sdk/v0.4.1","sdk/v0.5.0","sdk/v0.5.1","sdk/v0.5.3","sdk/v0.6.0","sdk/v0.6.1","sdk/v0.6.2","sdk/v0.7.0","sdk/v0.8.0","sdk/v0.9.0","sdk/v0.9.1","sdk/v1.100.0-development20240408","sdk/v2.0.1","sdk/v2.1.0","sdk/v2.2.0","sdk/v2.3.0","sdk/v2.4.0","sdk/v2.5.0","sdk/v2.5.1","v2.0.0","v2.0.0-alpha20240329","v2.0.0-beta20240618","v2.1.0-beta20241114","v2.1.0-beta20241114.1","v2.1.0-beta20241114.2","v2.1.0-beta20241114.3","v2.2.0-beta20250213","v2.3.0-beta20250528","v2.4.0","v2.5.0","v2.5.0-beta20251125","v2.5.1","v2.5.2"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-40264.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V4","score":"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"}]}