net/proxy/proxy_service.cc in the Proxy Auto-Config (PAC) feature in Google Chrome before 52.0.2743.82 does not ensure that URL information is restricted to a scheme, host, and port, which allows remote attackers to discover credentials by operating a server with a PAC script, a related issue to CVE-2016-3763.
https://www.kb.cert.org/vuls/id/877625
https://security.gentoo.org/glsa/201610-09
https://codereview.chromium.org/1996773002
http://www.ubuntu.com/usn/USN-3041-1
http://www.securitytracker.com/id/1036428
http://www.securityfocus.com/bid/92053
http://www.debian.org/security/2016/dsa-3637
http://rhn.redhat.com/errata/RHSA-2016-1485.html
http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00028.html
http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00022.html
http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00021.html
http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00020.html
http://googlechromereleases.blogspot.com/2016/07/stable-channel-update.html