---
title: "Django 5.1.8 release notes"
version: 5.2
locale: pl
source: https://docs.djangoproject.com/pl/5.2/releases/5.1.8/
canonical: https://djangodocs.dev/pl/5.2/releases/5.1.8/
---
# Django 5.1.8 release notes

*April 2, 2025*

Django 5.1.8 fixes a security issue with severity „moderate” and several bugs
in 5.1.7.

## CVE-2025-27556: Potential denial-of-service vulnerability in `LoginView`, `LogoutView`, and `set_language()` on Windows

Python’s [`NFKC normalization`](https://docs.python.org/3/library/unicodedata.html#unicodedata.normalize) is slow on
Windows. As a consequence, [`LoginView`](/pl/5.2/topics/auth/default/#django.contrib.auth.views.LoginView),
[`LogoutView`](/pl/5.2/topics/auth/default/#django.contrib.auth.views.LogoutView), and
[`set_language()`](/pl/5.2/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.

## Poprawki błędów

- 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)).