# Django 5.0.9.dev20240806133106 ドキュメント

# Django 4.0.2 リリースノート

2022年2月1日

Django 4.0.2 fixes two security issues with severity "medium" and several bugs in 4.0.1. Also, the latest string translations from Transifex are incorporated, with a special mention for Bulgarian (fully translated).

## CVE-2022-22818: `{% debug %}` テンプレート経由の XSS の可能性

The `{% debug %}` template tag didn't properly encode the current context, posing an XSS attack vector.

In order to avoid this vulnerability, `{% debug %}` no longer outputs information when the `DEBUG` setting is `False`, and it ensures all context variables are correctly escaped when the `DEBUG` setting is `True`.

## CVE-2022-23833: Denial-of-service possibility in file uploads

Passing certain inputs to multipart forms could result in an infinite loop when parsing files.

## バグ修正

- Fixed a bug in Django 4.0 where `TestCase.captureOnCommitCallbacks()` could execute callbacks multiple times (#33410).
- Fixed a regression in Django 4.0 where `help_text` was HTML-escaped in automatically-generated forms (#33419).
- Fixed a regression in Django 4.0 that caused displaying an incorrect name for class-based views on the technical 404 debug page (#33425).
- Fixed a regression in Django 4.0 that caused an incorrect `repr` of `ResolverMatch` for class-based views (#33426).
- Fixed a regression in Django 4.0 that caused a crash of `makemigrations` on models without `Meta.order_with_respect_to` but with a field named `_order` (#33449).
- Fixed a regression in Django 4.0 that caused incorrect `ModelAdmin.radio_fields` layout in the admin (#33407).
- Fixed a duplicate operation regression in Django 4.0 that caused a migration crash when altering a primary key type for a concrete parent model referenced by a foreign key (#33462).
- Fixed a bug in Django 4.0 that caused a crash of `QuerySet.aggregate()` after `annotate()` on an aggregate function with a default (#33468).
- Fixed a regression in Django 4.0 that caused a crash of `makemigrations` when renaming a field of a renamed model (#33480).