Coolify is an open-source and self-hostable tool for managing servers, applications, and databases. Prior to version 4.0.0-beta.361, the missing authorization allows any authenticated user to attach any existing private key on a coolify instance to his own server. If the server configuration of IP / domain, port (most likely 22) and user (root) matches with the victim's server configuration, then the attacker can use the `Terminal` feature and execute arbitrary commands on the victim's server. Version 4.0.0-beta.361 fixes the issue.
The product does not perform an authorization check when an actor attempts to access a resource or perform an action.