Sqlalchemy mako before 1.2.2 is vulnerable to Regular expression Denial of Service when using the Lexer class to parse. This also affects babelplugin and linguaplugin.
References
- https://nvd.nist.gov/vuln/detail/CVE-2022-40023
- https://github.com/sqlalchemy/mako/issues/366
- https://github.com/sqlalchemy/mako/commit/925760291d6efec64fda6e9dd1fd9cfbd5be068c
- https://github.com/pypa/advisory-database/tree/main/vulns/mako/PYSEC-2022-260.yaml
- https://github.com/sqlalchemy/mako/blob/c2f392e0be52dc67d1b9770ab8cce6a9c736d547/mako/ext/extract.py#L21
- https://pyup.io/vulnerabilities/CVE-2022-40023/50870/
- https://github.com/advisories/GHSA-v973-fxgf-6xhp
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