The Service Workers subsystem in Google Chrome before 52.0.2743.82 does not properly implement the Secure Contexts specification during decisions about whether to control a subframe, which allows remote attackers to bypass the Same Origin Policy via an https IFRAME element inside an http IFRAME element.
googlechromereleases.blogspot.com/2016/07/stable-channel-update.html
lists.opensuse.org/opensuse-security-announce/2016-07/msg00020.html
lists.opensuse.org/opensuse-security-announce/2016-07/msg00021.html
lists.opensuse.org/opensuse-security-announce/2016-07/msg00022.html
lists.opensuse.org/opensuse-security-announce/2016-07/msg00028.html
rhn.redhat.com/errata/RHSA-2016-1485.html
www.debian.org/security/2016/dsa-3637
www.securityfocus.com/bid/92053
www.securitytracker.com/id/1036428
www.ubuntu.com/usn/USN-3041-1
codereview.chromium.org/2009453002
codereview.chromium.org/2061203002/
codereview.chromium.org/2071433003
codereview.chromium.org/2082493002/
codereview.chromium.org/2085923002
crbug.com/607543
security.gentoo.org/glsa/201610-09