An issue was discovered in Django 5.0 before 5.0.7 and 4.2 before 4.2.14. get_supported_language_variant() was subject to a potential denial-of-service attack when used with very long strings containing specific characters.

References

• https://nvd.nist.gov/vuln/detail/CVE-2024-39614
• https://docs.djangoproject.com/en/dev/releases/security
• https://groups.google.com/forum/#%21forum/django-announce
• https://www.djangoproject.com/weblog/2024/jul/09/security-releases
• django/django@17358fb
• django/django@8e7a44e
• https://github.com/pypa/advisory-database/tree/main/vulns/django/PYSEC-2024-59.yaml