Blink, as used in Google Chrome before 53.0.2785.89 on Windows and OS X and before 53.0.2785.92 on Linux, mishandles deferred page loads, which allows remote attackers to inject arbitrary web script or HTML via a crafted web site, aka "Universal XSS (UXSS)."
https://security.gentoo.org/glsa/201610-09
https://googlechromereleases.blogspot.com/2016/08/stable-channel-update-for-desktop_31.html
https://codereview.chromium.org/2242923002
https://codereview.chromium.org/2190523002/
https://codereview.chromium.org/2183423002/
https://codereview.chromium.org/2174263002/
https://codereview.chromium.org/2169453002
https://codereview.chromium.org/2155393002
http://www.securitytracker.com/id/1036729
http://www.securityfocus.com/bid/92717
http://www.debian.org/security/2016/dsa-3660
http://rhn.redhat.com/errata/RHSA-2016-1854.html
http://lists.opensuse.org/opensuse-updates/2016-09/msg00073.html
http://lists.opensuse.org/opensuse-security-announce/2016-09/msg00008.html
http://lists.opensuse.org/opensuse-security-announce/2016-09/msg00004.html
http://lists.opensuse.org/opensuse-security-announce/2016-09/msg00003.html