    def get_absolute_path(path):
        import os
        script_dir = os.path.dirname(__file__)  # <-- absolute dir the script is in
        rel_path = path
        abs_file_path = os.path.join(script_dir, rel_path)
        return abs_file_path
The software uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the software does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.