CVE-2015-5145
validators.URLValidator in Django 1.8.x before 1.8.3 allows remote attackers to cause a denial of service (CPU consumption) via unspecified vectors.
Date published : 2015-07-14
http://www.securityfocus.com/bid/75691
https://www.djangoproject.com/weblog/2015/jul/08/security-releases/