def get_paths(base_path: pathlib.Path):
    data_file = pathlib.Path(str(base_path) + ".data")
    metadata_file = pathlib.Path(str(base_path) + ".meta")

    return data_file, metadata_file
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.