---
title: "Django 5.1.8 リリースノート"
version: 6.1
locale: ja
source: https://docs.djangoproject.com/ja/6.1/releases/5.1.8/
canonical: https://djangodocs.dev/ja/6.1/releases/5.1.8/
---
# Django 5.1.8 リリースノート

2025年4月2日

Django 5.1.8 では、 5.1.7 における深刻度 "moderate" のセキュリティの問題1件と、いくつかのバグを修正しました。

## CVE-2025-27556: Windows における、 `LoginView` 、 `LogoutView` および `set_language()` での潜在的な DoS 攻撃の脆弱性

Python's [`NFKC normalization`](https://docs.python.org/3/library/unicodedata.html#unicodedata.normalize) is slow on
Windows. As a consequence, [`LoginView`](/ja/6.1/topics/auth/default/#django.contrib.auth.views.LoginView),
[`LogoutView`](/ja/6.1/topics/auth/default/#django.contrib.auth.views.LogoutView), and
[`set_language()`](/ja/6.1/topics/i18n/translation/#django.views.i18n.set_language) were subject to a potential
denial-of-service attack via certain inputs with a very large number of Unicode
characters.

## バグ修正

- Fixed a regression in Django 5.1.7 where the removal of the `single_object`
  parameter unintentionally altered the signature and return type of
  `LogEntryManager.log_actions()` ([#36234](https://code.djangoproject.com/ticket/36234)).