CVE-2026-55774

OpenBao is an open source identity-based secrets management system. Prior to 2.5.5, an OpenBao user with access to sys/leases/revoke/:leaseid in one namespace could revoke a lease in another namespace when the foreign leaseid was known, bypassing namespace ACL isolation. The affected lease lookup...

CVE-2026-45808 OpenBao's cross-namespace lease revocation via legacy sys/revoke path bypasses ACL

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 th...

GHSA-P49J-V9WC-WG57 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...