---
title: "Django 5.1.5 release notes"
version: 5.2
locale: el
source: https://docs.djangoproject.com/el/5.2/releases/5.1.5/
canonical: https://djangodocs.dev/el/5.2/releases/5.1.5/
---
# Django 5.1.5 release notes

*January 14, 2025*

Django 5.1.5 fixes a security issue with severity «moderate» and one bug in
5.1.4.

## CVE-2024-56374: Potential denial-of-service vulnerability in IPv6 validation

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` were
vulnerable, as was the  [`django.forms.GenericIPAddressField`](/el/5.2/ref/forms/fields/#django.forms.GenericIPAddressField) form field,
which has now been updated to define a `max_length` of 39 characters.

The [`django.db.models.GenericIPAddressField`](/el/5.2/ref/models/fields/#django.db.models.GenericIPAddressField) model field was not
affected.

## Bugfixes

- Fixed a crash when applying migrations with references to the removed
  `Meta.index_together` option ([#34856](https://code.djangoproject.com/ticket/34856)).