# Django 4.2.9.dev20231204082947 - dokumentacja

# Django 3.2.21 release notes

September 4, 2023

Django 3.2.21 fixes a security issue with severity „moderate” in 3.2.20.

## CVE-2023-41164: Potential denial of service vulnerability in `django.utils.encoding.uri_to_iri()`

`django.utils.encoding.uri_to_iri()` was subject to potential denial of service attack via certain inputs with a very large number of Unicode characters.