CVE-2024-56374 Information

Description

An issue was discovered in Django 5.1 before 5.1.5 5.0 before 5.0.11 and 4.2 before 4.2.18. Lack of upper-bound limit enforcement in strings passed when performing IPv6 validation could lead to a potential denial-of-service attack. The undocumented and private functions clean_ipv6_address and is_valid_ipv6_address are vulnerable as is the django.forms.GenericIPAddressField form field. (The django.db.models.GenericIPAddressField model field is not affected.)

Reference

http://www.openwall.com/lists/oss-security/2025/01/14/2 https://docs.djangoproject.com/en/dev/releases/security/ https://groups.google.com/g/django-announce https://www.djangoproject.com/weblog/2025/jan/14/security-releases/