# documentación de Django - 5.1.7

# Django 5.0.3 release notes

March 4, 2024

Django 5.0.3 fixes a security issue with severity «moderate» and several bugs in 5.0.2.

## CVE-2024-27351: Potential regular expression denial-of-service in `django.utils.text.Truncator.words()`

`django.utils.text.Truncator.words()` method (with `html=True`) and `truncatewords_html` template filter were subject to a potential regular expression denial-of-service attack using a suitably crafted string (follow up to CVE 2019-14232 and CVE 2023-43665).

## Bugfixes

- Fixed a regression in Django 5.0.2 where `intcomma` template filter could return a leading comma for string representation of floats (#35172).

- Fixed a bug in Django 5.0 that caused a crash of `Signal.asend()` and `asend_robust()` when all receivers were asynchronous functions (#35174).

- Fixed a regression in Django 5.0.1 where `ModelAdmin.lookup_allowed()` would prevent filtering against foreign keys using lookups like `__isnull` when the field was not included in `ModelAdmin.list_filter` (#35173).

- Fixed a regression in Django 5.0 that caused a crash of `@sensitive_variables` and `@sensitive_post_parameters` decorators on functions loaded from `.pyc` files (#35187).

- Fixed a regression in Django 5.0 that caused a crash when reloading a test database and a base queryset for a base manager used `prefetch_related()` (#35238).

- Fixed a bug in Django 5.0 where facet filters in the admin would crash on a `SimpleListFilter` using a queryset without primary keys (#35198).