CVE-2015-3982
The session.flush function in the cached_db backend in Django 1.8.x before 1.8.2 does not properly flush the session, which allows remote attackers to hijack user sessions via an empty string in the session key.
Date published : 2015-06-02
http://www.securityfocus.com/bid/74960
https://www.djangoproject.com/weblog/2015/may/20/security-release/