CVE-2026-55774 OpenBao: Cross-namespace lease revocation/renewal via canonical sys/leases/{revoke,renew} — incomplete fix of CVE-2026-45808

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...