Django security releases issued: 5.0.8 and 4.2.15

Posted by Sarah Boyce on Aug. 6, 2024

In accordance with our security release policy, the Django team is issuing releases for Django 5.0.8 and Django 4.2.15. These releases address the security issues detailed below. We encourage all users of Django to upgrade as soon as possible.

CVE-2024-41989: Memory exhaustion in `django.utils.numberformat.floatformat()`

The floatformat template filter is subject to significant memory consumption when given a string representation of a number in scientific notation with a large exponent.

Thanks to Elias Myllymäki for the report.

This issue has severity "moderate" according to the Django security policy.

CVE-2024-41990: Potential denial-of-service in `django.utils.html.urlize()`

The urlize() and urlizetrunc() template filters are subject to a potential denial-of-service attack via very large inputs with a specific sequence of characters.

Thanks to MProgrammer for the report.

This issue has severity "moderate" according to the Django security policy.

CVE-2024-41991: Potential denial-of-service vulnerability in `django.utils.html.urlize()` and `AdminURLFieldWidget`

The urlize and urlizetrunc template filters, and the AdminURLFieldWidget widget, are subject to a potential denial-of-service attack via certain inputs with a very large number of Unicode characters.

Thanks to Seokchan Yoon for the report.

This issue has severity "moderate" according to the Django security policy.

CVE-2024-42005: Potential SQL injection in `QuerySet.values()` and `values_list()`

QuerySet.values() and values_list() methods on models with a JSONField are subject to SQL injection in column aliases via a crafted JSON object key as a passed *arg.

Thanks to Eyal Gabay of EyalSec for the report.

This issue has severity "high" according to the Django security policy.

Affected supported versions

Django main branch
Django 5.1 (currently at release candidate status)
Django 5.0
Django 4.2

Resolution

Patches to resolve the issue have been applied to Django's main, 5.1, 5.0, and 4.2 branches. The patches may be obtained from the following changesets.

CVE-2024-41989: Memory exhaustion in `django.utils.numberformat.floatformat()`

On the main branch
On the 5.1 branch
On the 5.0 branch
On the 4.2 branch

CVE-2024-41990: Potential denial-of-service in `django.utils.html.urlize()`

On the main branch
On the 5.1 branch
On the 5.0 branch
On the 4.2 branch

CVE-2024-41991: Potential denial-of-service vulnerability in `django.utils.html.urlize()` and `AdminURLFieldWidget`

On the main branch
On the 5.1 branch
On the 5.0 branch
On the 4.2 branch

CVE-2024-42005: Potential SQL injection in `QuerySet.values()` and `values_list()`

On the main branch
On the 5.1 branch
On the 5.0 branch
On the 4.2 branch

The following releases have been issued

Django 5.0.8 (download Django 5.0.8 | 5.0.8 checksums)
Django 4.2.15 (download Django 4.2.15 | 4.2.15 checksums)

The PGP key ID used for this release is Sarah Boyce: 3955B19851EA96EF

General notes regarding security reporting

As always, we ask that potential security issues be reported via private email to security@djangoproject.com, and not via Django's Trac instance, nor via the Django Forum, nor via the django-developers list. Please see our security policies for further information.