    void percent() {
        final PathAndQuery res = parse("/%25");
        assertThat(res).isNotNull();
        assertThat(res.path()).isEqualTo("/%25");
        assertThat(res.query()).isNull();
    }
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.