django/docs/releases/1.8.19.txt

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===========================
Django 1.8.19 release notes
===========================
*March 6, 2018*
Django 1.8.19 fixes two security issues in 1.18.18.
CVE-2018-7536: Denial-of-service possibility in ``urlize`` and ``urlizetrunc`` template filters
===============================================================================================
The ``django.utils.html.urlize()`` function was extremely slow to evaluate
certain inputs due to a catastrophic backtracking vulnerability in a regular
expression. The ``urlize()`` function is used to implement the ``urlize`` and
``urlizetrunc`` template filters, which were thus vulnerable.
The problematic regular expression is replaced with parsing logic that behaves
similarly.