django/docs/releases/2.1.6.txt
Carlton Gibson 83ab3e2664 [2.2.x] Fixed CVE-2019-6975 -- Fixed memory exhaustion in utils.numberformat.format().
Thanks Sjoerd Job Postmus for the report and initial patch.
Thanks Michael Manfre, Tim Graham, and Florian Apolloner for review.

Backport of 402c0caa851e265410fbcaa55318f22d2bf22ee2 from master
2019-02-11 11:10:38 +01:00

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Django 2.1.6 release notes
==========================
*February 11, 2019*
Django 2.1.6 fixes a security issue and a bug in 2.1.5.
CVE-2019-6975: Memory exhaustion in ``django.utils.numberformat.format()``
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If ``django.utils.numberformat.format()`` -- used by ``contrib.admin`` as well
as the the ``floatformat``, ``filesizeformat``, and ``intcomma`` templates
filters -- received a ``Decimal`` with a large number of digits or a large
exponent, it could lead to significant memory usage due to a call to
``'{:f}'.format()``.
To avoid this, decimals with more than 200 digits are now formatted using
scientific notation.
Bugfixes
========
* Made the ``obj`` argument of ``InlineModelAdmin.has_add_permission()``
optional to restore backwards compatibility with third-party code that
doesn't provide it (:ticket:`30097`).