OpenBao's Token Store Allows Cross-Namespace Renewal, Revocation
### Impact OpenBao'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. ### Patches This was addressed in v2.5.3.
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describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2026-40264US | low2.7 | — | ||
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… | ||||
02
references
External citations — patches, advisories, analysis.
- https://github.com/openbao/openbaoPACKAGE
- https://github.com/openbao/openbao/commit/059cc5950303688335d5c8ab9af8e453795d693aWEB
- https://github.com/openbao/openbao/pull/2934WEB
- https://github.com/openbao/openbao/releases/tag/v2.5.3WEB
- https://github.com/openbao/openbao/security/advisories/GHSA-p49j-v9wc-wg57WEB
- https://nvd.nist.gov/vuln/detail/CVE-2026-40264ADVISORY
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