{"cve":"CVE-2026-45808","nvd":{"published":"2026-08-07T22:16:58.370","modified":"2026-09-09T21:02:22.660","status":"Deferred","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.","cvss_v4":{"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","score":7.1},"cvss_v3":null,"cwes":["CWE-863"],"references":["https://github.com/openbao/openbao/commit/c0495646b41cea0e3f5a1030132e9cf5c2375b5c","https://github.com/openbao/openbao/pull/3152","https://github.com/openbao/openbao/releases/tag/v2.5.4","https://github.com/openbao/openbao/security/advisories/GHSA-v8v8-cm84-m686"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:47:54.990491175+00:00"},"epss":{"cve":"CVE-2026-45808","score":0.00427,"percentile":0.37032,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-v8v8-cm84-m686","url":"https://osv.dev/vulnerability/GHSA-v8v8-cm84-m686","summary":"OpenBao's cross-namespace lease revocation via legacy sys/revoke path bypasses ACL","modified":"2026-08-17T08:10:40.466266903Z","packages":[{"ecosystem":"Go","name":"github.com/openbao/openbao","purl":"pkg:golang/github.com/openbao/openbao","ranges":["<2.5.4"],"fixed":["2.5.4"]}]},{"id":"GO-2026-5657","url":"https://osv.dev/vulnerability/GO-2026-5657","summary":"OpenBao's cross-namespace lease revocation via legacy sys/revoke path bypasses ACL in github.com/openbao/openbao","modified":"2026-08-17T08:10:40.466266903Z","packages":[{"ecosystem":"Go","name":"github.com/openbao/openbao","purl":"pkg:golang/github.com/openbao/openbao","ranges":["all versions"],"fixed":[]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}