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.)
2025-01-14T19:15:32.510
2025-10-03T13:16:13.223
Analyzed
CVSSv3.1: 5.8 (MEDIUM)
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Application | djangoproject | django | < 4.2.18 | Yes |
| Application | djangoproject | django | < 5.0.11 | Yes |
| Application | djangoproject | django | < 5.1.5 | Yes |
| Operating System | debian | debian_linux | 11.0 | Yes |