CVE-2015-1091
The CFNetwork Session component in Apple iOS before 8.3 and Apple OS X before 10.10.3 does not properly handle request headers during processing of redirects in HTTP responses, which allows remote attackers to bypass the Same Origin Policy via a crafted web site.
Date published : 2015-04-10
http://lists.apple.com/archives/security-announce/2015/Apr/msg00001.html
http://lists.apple.com/archives/security-announce/2015/Apr/msg00002.html