GHSA-WVR4-3WQ4-GPC5 MCP Connect has unauthenticated remote OS command execution via /bridge endpoint

Summary When AUTHTOKEN and ACCESSTOKEN environment variables are not set which is the default out-of-the-box configuration the /bridge HTTP endpoint is completely unauthenticated. Any network-accessible caller can POST a request with an attacker-controlled serverPath and args payload, causing the...