Django 5.1.7 Released: Security Fixes and Bug Patches You Need to Know

Stay secure with the latest Django update!

Django 5.1.7 Released: Security Fixes and Bug Patches You Need to Know

Django 5.1.7 has just been released, addressing a moderate security vulnerability and several bug fixes from the previous version (5.1.6). If you’re using Django 5.1, upgrading to this latest release is recommended to ensure your applications remain secure and stable.

Security Fix: CVE-2025–26699 — Potential DoS Vulnerability

A key security fix in this release addresses CVE-2025–26699, a potential denial-of-service (DoS) vulnerability in django.utils.text.wrap(). This issue also affected the wordwrap template filter.

If these functions were used with excessively long strings, they could be exploited to cause performance issues, making applications susceptible to DoS attacks.

If your Django project relies on wrap() or the wordwrap filter in templates, this update is critical for mitigating security risks.

Bug Fixes in Django 5.1.7

Alongside the security patch, several bugs from Django 5.1 have been fixed:

Querystring Template Tag Fix

• The {% querystring %} template tag now correctly returns "?" instead of an empty string when all query parameters are removed.

Bug Reference: #36182

File Overwrite Issue in FileSystemStorage

• When using FileSystemStorage with allow_overwrite=True, files are now correctly truncated before being overwritten.

Bug Reference: #36191

ManyToManyField Count & Exists Fix

• A regression in Django 5.1 caused the count() and exists() methods of ManyToManyField related managers to always return 0 and False, respectively, when intermediary model back-references used to_field. This issue is now resolved.

Bug Reference: #36197

LogEntry Signals in Admin Deletion

• The pre_save and post_save signals for LogEntry were not being triggered when deleting a single object in the Django Admin. This behavior has been restored.

Bug Reference: #36217

Why You Should Upgrade

Django 5.1.7 is a recommended update for all users of Django 5.1. The security fix prevents potential denial-of-service attacks, and the bug fixes restore expected behavior in template tags, file storage, ManyToMany relationships, and admin signals.

To upgrade, simply run:

pip install --upgrade django

or

pip install Django==5.1.7

Stay secure and happy coding with Django! 🚀