CVE-2026-55776 OpenBao: Transit secrets engine crashes on key creation with `derived: true` for asymmetric key types

OpenBao is an open source identity-based secrets management system. Prior to 2.5.5, an authenticated OpenBao caller with write access to transit/keys/ could terminate the server process by setting derived to true while the type parameter selected rsa-, ecdsa-, or ed25519. The Transit policy...