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==========================
Django 5.1.7 release notes
==========================
*March 6, 2025*
Django 5.1.7 fixes a security issue with severity "moderate" and several bugs
in 5.1.6.
CVE-2025-26699: Potential denial-of-service vulnerability in ``django.utils.text.wrap()``
=========================================================================================
The ``wrap()`` and :tfilter:`wordwrap` template filter were subject to a
potential denial-of-service attack when used with very long strings.
Bugfixes
========
* Fixed a bug in Django 5.1 where the ``{% querystring %}`` template tag
returned an empty string rather than ``"?"`` when all parameters had been
removed from the query string (:ticket:`36182`).
* Fixed a bug in Django 5.1 where ``FileSystemStorage``, with
``allow_overwrite`` set to ``True``, did not truncate the overwritten file
content (:ticket:`36191`).
* Fixed a regression in Django 5.1 where the ``count`` and ``exists`` methods
of ``ManyToManyField`` related managers would always return ``0`` and
``False`` when the intermediary model back references used ``to_field``
(:ticket:`36197`).
* Fixed a regression in Django 5.1 where the ``pre_save`` and ``post_save``
signals for ``LogEntry`` were not sent when deleting a single object in the
admin (:ticket:`36217`).
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