A ReDoS issue was discovered in pygments/lexers/smithy.py in pygments through 2.15.0 via SmithyLexer.
https://pyup.io/posts/pyup-discovers-redos-vulnerabilities-in-top-python-packages-part-2/
https://pypi.org/project/Pygments/
https://github.com/pygments/pygments/blob/master/pygments/lexers/smithy.py#L61