skypilot-org skypilot User ID server.py username.encode weak hash

A vulnerability was detected in skypilot-org skypilot up to 0.12.0. Impacted is the function username.encode of the file sky/users/server.py of the component User ID Handler. The manipulation results in use of weak hash. The attack may be performed from remote. This attack is characterized by high complexity. The exploitability is considered difficult. The exploit is now public and may be used. The vendor was contacted early about this disclosure.