Arbitrary directory creation or file deletion. In the find_file method of the GitFS class, a path is created using os.path.join using unvalidated input from the “tgt_env” variable. This can be exploited by an attacker to delete any file on the Master's process has permissions to.
https://docs.saltproject.io/en/3007/topics/releases/3007.4.html
https://docs.saltproject.io/en/3006/topics/releases/3006.12.html