Language: Python
Label: vulnerable
CWE: CWE-29 \u2014 Path Traversal: '\..\filename'
The product uses external input to construct a pathname that should be within a restricted directory, but it does not properly neutralize '\..\filename' (leading backslash dot dot) sequences that can resolve to a location that is outside of that directory.

Code:
def test_validate_path_is_safe_good(path):
    validate_path_is_safe(path)