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.)
Metrics
CVSS 3.1 7.5/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| djangoproject | Django | >= 4.2, < 4.2.18; >= 5.0, < 5.0.11; >= 5.1, < 5.1.5 |
References
- https://docs.djangoproject.com/en/dev/releases/security/Vendor Advisory
- https://groups.google.com/g/django-announceVendor Advisory
- https://www.djangoproject.com/weblog/2025/jan/14/security-releases/Vendor Advisory
- http://www.openwall.com/lists/oss-security/2025/01/14/2Mailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2025/01/msg00024.htmlMailing List, Third Party Advisory
Timeline
- Published
- Jan 14, 2025
- Last modified
- Jun 17, 2026
- NVD status
- Analyzed