It was discovered that there was a potential directory traversal issue in Django, a Python-based web development framework.
The vulnerability could have been exploited by maliciously crafted filenames. However, the upload handlers built into Django itself were not affected.
For Debian 8 Jessie, these problems have been fixed in version 1.7.11-1+deb8u12.
We recommend that you upgrade your python-django packages.
Further information about Extended LTS security advisories can be found at: https://deb.freexian.com/extended-lts/