Django Vulnerable to Cache Poisoning

Django 1.4 before 1.4.13, 1.5 before 1.5.8, 1.6 before 1.6.5, and 1.7 before 1.7b4 does not properly include the 1 Vary: Cookie or 2 Cache-Control header in responses, which allows remote attackers to obtain sensitive information or poison the cache via a request from certain browsers...