    def _decompress(compressed_path: Text, target_path: Text) -> None:

        with tarfile.open(compressed_path, "r:gz") as tar:
            tar.extractall(target_path)  # target dir will be created if it not exists
The software uses external input to construct a pathname that should be within a restricted directory, but it does not properly neutralize sequences such as ".." that can resolve to a location that is outside of that directory.