CVE-2026-45808

Summary

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.

Affected Software

Weaknesses

• CWE-863: CWE-863: Incorrect Authorization

References

• https://github.com/openbao/openbao/security/advisories/GHSA-v8v8-cm84-m686
• https://github.com/openbao/openbao/pull/3152
• https://github.com/openbao/openbao/commit/c0495646b41cea0e3f5a1030132e9cf5c2375b5c
• https://github.com/openbao/openbao/releases/tag/v2.5.4

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