OpenBao's cross-namespace lease revocation via legacy sys/revoke path bypasses ACL
# Impact 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. # Patch This will be addressed in v2.5.4.
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describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2026-45808US | —OT elevated | — | ||
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 l… | ||||
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references
External citations — patches, advisories, analysis.
- https://github.com/openbao/openbaoPACKAGE
- https://github.com/openbao/openbao/commit/c0495646b41cea0e3f5a1030132e9cf5c2375b5cWEB
- https://github.com/openbao/openbao/pull/3152WEB
- https://github.com/openbao/openbao/releases/tag/v2.5.4WEB
- https://github.com/openbao/openbao/security/advisories/GHSA-v8v8-cm84-m686WEB
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