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===========================
Django 5.2.11 release notes
===========================
*February 3, 2026*
Django 5.2.11 fixes three security issues with severity "high", two security
issues with severity "moderate", and one security issue with severity "low" in
5.2.10.
CVE-2025-13473: Username enumeration through timing difference in mod_wsgi authentication handler
=================================================================================================
The ``django.contrib.auth.handlers.modwsgi.check_password()`` function for
:doc:`authentication via mod_wsgi</howto/deployment/wsgi/apache-auth>`
allowed remote attackers to enumerate users via a timing attack.
This issue has severity "low" according to the :ref:`Django security policy
<security-disclosure>`.
CVE-2025-14550: Potential denial-of-service vulnerability via repeated headers when using ASGI
==============================================================================================
When receiving duplicates of a single header, ``ASGIRequest`` allowed a remote
attacker to cause a potential denial-of-service via a specifically created
request with multiple duplicate headers. The vulnerability resulted from
repeated string concatenation while combining repeated headers, which
produced super-linear computation resulting in service degradation or outage.
This issue has severity "moderate" according to the :ref:`Django security
policy <security-disclosure>`.
CVE-2026-1207: Potential SQL injection via raster lookups on PostGIS
====================================================================
:ref:`Raster lookups <spatial-lookup-raster>` on GIS fields (only implemented
on PostGIS) were subject to SQL injection if untrusted data was used as a band
index.
As a reminder, all untrusted user input should be validated before use.
This issue has severity "high" according to the :ref:`Django security policy
<security-disclosure>`.
CVE-2026-1285: Potential denial-of-service vulnerability in ``django.utils.text.Truncator`` HTML methods
========================================================================================================
``django.utils.text.Truncator.chars()`` and ``Truncator.words()`` methods (with
``html=True``) and the :tfilter:`truncatechars_html` and
:tfilter:`truncatewords_html` template filters were subject to a potential
denial-of-service attack via certain inputs with a large number of unmatched
HTML end tags, which could cause quadratic time complexity during HTML parsing.
This issue has severity "moderate" according to the :ref:`Django security
policy <security-disclosure>`.
CVE-2026-1287: Potential SQL injection in column aliases via control characters
===============================================================================
:class:`.FilteredRelation` was subject to SQL injection in column aliases via
control characters, using a suitably crafted dictionary, with dictionary
expansion, as the ``**kwargs`` passed to :meth:`.QuerySet.annotate`,
:meth:`~.QuerySet.aggregate`, :meth:`~.QuerySet.extra`,
:meth:`~.QuerySet.values`, :meth:`~.QuerySet.values_list`, and
:meth:`~.QuerySet.alias`.
This issue has severity "high" according to the :ref:`Django security policy
<security-disclosure>`.
|
