30 lines
1.2 KiB
Plaintext
30 lines
1.2 KiB
Plaintext
==========================
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Django 3.2.2 release notes
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==========================
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*May 6, 2021*
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Django 3.2.2 fixes a security issue and a bug in 3.2.1.
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CVE-2021-32052: Header injection possibility since ``URLValidator`` accepted newlines in input on Python 3.9.5+
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===============================================================================================================
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On Python 3.9.5+, :class:`~django.core.validators.URLValidator` didn't prohibit
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newlines and tabs. If you used values with newlines in HTTP response, you could
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suffer from header injection attacks. Django itself wasn't vulnerable because
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:class:`~django.http.HttpResponse` prohibits newlines in HTTP headers.
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Moreover, the ``URLField`` form field which uses ``URLValidator`` silently
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removes newlines and tabs on Python 3.9.5+, so the possibility of newlines
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entering your data only existed if you are using this validator outside of the
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form fields.
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This issue was introduced by the :bpo:`43882` fix.
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Bugfixes
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========
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* Prevented, following a regression in Django 3.2.1, :djadmin:`makemigrations`
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from generating infinite migrations for a model with ``Meta.ordering``
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contained ``OrderBy`` expressions (:ticket:`32714`).
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