What’s Vulnerable › Vulnerabilities
CVE-2022-40896
- Severity: medium (CVSS 5.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.5% probability of exploitation in the next 30 days
- Public exploit or detection template: yes
- Published: 2023-07-19 · updated 2026-06-17
- Weakness: CWE-434
Description
A ReDoS issue was discovered in pygments/lexers/smithy.py in pygments through 2.15.0 via SmithyLexer.
Affected products
- Pygments: through 2.15.0
References
- https://github.com/pygments/pygments/blob/master/pygments/lexers/smithy.py#L61
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EZGMXALE3HSP4OXC7UUWIKX3OXKZDTY3/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VUZO4BQCIY2S2KZYHERQMKURB7AHXDBO/
- https://pypi.org/project/Pygments/
- https://pyup.io/posts/pyup-discovers-redos-vulnerabilities-in-top-python-packages-part-2/
- https://github.com/pygments/pygments/blob/master/pygments/lexers/smithy.py#L61
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EZGMXALE3HSP4OXC7UUWIKX3OXKZDTY3/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VUZO4BQCIY2S2KZYHERQMKURB7AHXDBO/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/EZGMXALE3HSP4OXC7UUWIKX3OXKZDTY3/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VUZO4BQCIY2S2KZYHERQMKURB7AHXDBO/
- https://pypi.org/project/Pygments/
- https://pyup.io/posts/pyup-discovers-redos-vulnerabilities-in-top-python-packages-part-2/
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