In Django 3.2 before 3.2.16, 4.0 before 4.0.8, and 4.1 before 4.1.2, internationalized URLs were subject to a potential denial of service attack via the locale parameter, which is treated as a regular expression.
https://www.djangoproject.com/weblog/2022/oct/04/security-releases/
https://security.netapp.com/advisory/ntap-20221124-0001/
https://groups.google.com/forum/#%21forum/django-announce
https://github.com/django/django/commit/5b6b257fa7ec37ff27965358800c67e2dd11c924
Published: 2022-10-16
Updated: 2023-11-07
Base Score: 7.8
Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C
Severity: High
Base Score: 7.5
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Severity: High
Base Score: 8.7
Vector: 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
Severity: High