{"id":"GHSA-p49j-v9wc-wg57","summary":"OpenBao's Token Store Allows Cross-Namespace Renewal, Revocation","details":"### Impact\n\nOpenBao's namespaces provide multi-tenant separation. A tenant who leaks token accessors can have their token revoked or renewed by a privileged administrator in another tenant.\n\n### Patches\n\nThis was addressed in v2.5.3.","aliases":["BIT-openbao-2026-40264","CVE-2026-40264","GO-2026-5526"],"modified":"2026-07-29T03:49:04.830987631Z","published":"2026-04-21T18:27:42Z","database_specific":{"nvd_published_at":"2026-04-21T01:16:06Z","cwe_ids":["CWE-1259"],"severity":"LOW","github_reviewed":true,"github_reviewed_at":"2026-04-21T18:27:42Z"},"references":[{"type":"WEB","url":"https://github.com/openbao/openbao/security/advisories/GHSA-p49j-v9wc-wg57"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-40264"},{"type":"WEB","url":"https://github.com/openbao/openbao/pull/2934"},{"type":"WEB","url":"https://github.com/openbao/openbao/commit/059cc5950303688335d5c8ab9af8e453795d693a"},{"type":"PACKAGE","url":"https://github.com/openbao/openbao"},{"type":"WEB","url":"https://github.com/openbao/openbao/releases/tag/v2.5.3"}],"affected":[{"package":{"name":"github.com/openbao/openbao","ecosystem":"Go","purl":"pkg:golang/github.com/openbao/openbao"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"0.0.0-20260420162526-f58111d2ca54"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/04/GHSA-p49j-v9wc-wg57/GHSA-p49j-v9wc-wg57.json"}}],"schema_version":"1.9.0","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"}]}