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Django 4.0.2 release notes

Django 4.0.2 release notes

February 1, 2022

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: Possible XSS via {% debug %} template tag

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.

漏洞修复

  • 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).

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