When running a remote execution job on a host, the ssh key of the host is not being checked. When the key changes, the Satellite connects it anyway because it uses "-o StrictHostKeyChecking=no". This can lead to MITM, DoS, leaking of whatever secrets the remote execution job contains, or whatever other issues may arise from the attacker being able to forge a ssh key.
This does not directly allow unauthorized remote execution on the Satellite (although it can leak secrets leading to it)..