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django/docs/releases/5.1.5.txt
Michael Manfre ca2be7724e Fixed CVE-2024-56374 -- Mitigated potential DoS in IPv6 validation.
Thanks Saravana Kumar for the report, and Sarah Boyce and Mariusz
Felisiak for the reviews.

Co-authored-by: Natalia <124304+nessita@users.noreply.github.com>
2025-01-14 08:42:24 -03:00

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Django 5.1.5 release notes
==========================
*January 14, 2025*
Django 5.1.5 fixes a security issue with severity "moderate" and one bug in
5.1.4.
CVE-2024-56374: Potential denial-of-service vulnerability in IPv6 validation
============================================================================
Lack of upper bound limit enforcement in strings passed when performing IPv6
validation could lead to a potential denial-of-service attack. The undocumented
and private functions ``clean_ipv6_address`` and ``is_valid_ipv6_address`` were
vulnerable, as was the :class:`django.forms.GenericIPAddressField` form field,
which has now been updated to define a ``max_length`` of 39 characters.
The :class:`django.db.models.GenericIPAddressField` model field was not
affected.
Bugfixes
========
* Fixed a crash when applying migrations with references to the removed
``Meta.index_together`` option (:ticket:`34856`).