GHSA-X626-FCWX-F5PC Portainer has Unauthenticated Restore Endpoint that Allows Admin Takeover on Uninitialized Instances

Summary Portainer supports restoring an instance from a backup archive via the /api/restore endpoint. This endpoint is intentionally unauthenticated to allow restoring before the first admin account is created, and remains accessible for the five-minute initialization window that opens each time...