---
title: "Django 5.1.5 リリースノート"
version: 6.0
locale: ja
source: https://docs.djangoproject.com/ja/6.0/releases/5.1.5/
canonical: https://djangodocs.dev/ja/6.0/releases/5.1.5/
---
# Django 5.1.5 リリースノート

*2025年2月14日*

Django 5.1.5 では 5.1.4 における深刻度 "moderate" のセキュリティの問題とバグを修正しました。

## CVE-2024-56374: IPv6 検証における潜在的な DoS 攻撃の脆弱性

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`](/ja/6.0/ref/forms/fields/#django.forms.GenericIPAddressField) form field,
which has now been updated to define a `max_length` of 39 characters.

[`django.db.models.GenericIPAddressField`](/ja/6.0/ref/models/fields/#django.db.models.GenericIPAddressField) モデルフィールドは影響されませんでした。

## バグ修正

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