High (8.5) in openclaw openclaw. EPSS 0.1% chance of exploitation in the next 30 days. Fixed in openclaw 2026.4.22.
OpenClaw before 2026.4.22 derives loopback MCP owner context from spoofable server-issued bearer tokens in request headers. Non-owner loopback clients can present themselves as owner to bypass owner-gated operations by manipulating the sender-owner header metadata.