Coolify Vulnerable to Private Key Enumeration on Onboarding resulting in Remote Command Execution (RCE)

Coolify is an open-source and self-hostable tool for managing servers, applications, and databases. Prior to version 4.0.0-beta.374, the missing authorization allows an authenticated user to retrieve any existing private keys on a coolify instance in plain text. 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 execute arbitrary commands on the remote server. Version 4.0.0-beta.374 fixes the issue.