CVE-2022-40896

A ReDoS issue was discovered in pygments/lexers/smithy.py in pygments through 2.15.0 via SmithyLexer.

CVSS v4.0 GitHub

6.8 MEDIUMCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

CVSS v3.1 NVD

5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

EPSS

0.52% chance of exploitation in the next 30 days, 43rd percentile

Published

2023-07-19

Updated

2024-11-27

Proof-of-concept exploits (1)

• https://pyup.io/posts/pyup-discovers-redos-vulnerabilities-in-top-python-packages-part-2/

Security advisories

• pygments/pygments/blob/master/pygments/lexers/smithy.py#L61
• https://pyup.io/posts/pyup-discovers-redos-vulnerabilities-in-top-python-packages-part-2
• advisories/GHSA-mrwq-x4v8-fh7p
• https://pypi.org/project/Pygments

References

• CVE Record
• NVD entry