GO-2026-5304 OpenBao: Cross-namespace lease revocation/renewal via canonical sys/leases/{revoke,renew} — incomplete fix of CVE-2026-45808 in github.com/openbao/openbao

OpenBao: Cross-namespace lease revocation/renewal via canonical sys/leases/revoke,renew — incomplete fix of CVE-2026-45808 in github.com/openbao/openbao...

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

Summary OpenBao users with access to the sys/leases/revoke/:leaseid endpoint in any namespace can revoke leases in any other namespace as long as the lease identifier is known to them, bypassing ACLs that should apply for cross-namespace revocations. Impact OpenBao's namespaces provide multi-tena...