sqlalchemy/mako · Security
mako is vulnerable to Regular Expression Denial of Service
- GHSA ID
- GHSA-v973-fxgf-6xhp
- CVE ID
- CVE-2022-40023
- Severity
- high
- Published
- Updated
- CVSS
- 7.5 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CVSS v3
- 7.5 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CVSS v4
- 8.7 · CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Description
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.
CWEs
- CWE-1333 · Inefficient Regular Expression Complexity
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://lists.debian.org/debian-lts-announce/2022/09/msg00026.html ↗
- https://github.com/advisories/GHSA-v973-fxgf-6xhp ↗
- https://pyup.io/posts/pyup-discovers-redos-vulnerabilities-in-top-python-packages ↗
- https://pyup.io/vulnerabilities/CVE-2022-40023/50870 ↗
- https://lists.debian.org/debian-lts-announce/2025/12/msg00004.html ↗