The Extensions subsystem in Google Chrome before 50.0.2661.75 incorrectly relies on GetOrigin method calls for origin comparisons, which allows remote attackers to bypass the Same Origin Policy and obtain sensitive information via a crafted extension.
https://security.gentoo.org/glsa/201605-02
https://codereview.chromium.org/1658913002
http://www.debian.org/security/2016/dsa-3549
http://rhn.redhat.com/errata/RHSA-2016-0638.html
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00050.html
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00049.html
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00041.html
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00040.html
http://googlechromereleases.blogspot.com/2016/04/stable-channel-update_13.html