Google Chrome before 50.0.2661.102 on Android mishandles / (slash) and \ (backslash) characters, which allows attackers to conduct directory traversal attacks via a file: URL, related to net/base/escape.cc and net/base/filename_util.cc.
https://security.gentoo.org/glsa/201605-02
https://codereview.chromium.org/1704163003/
http://www.securitytracker.com/id/1035872
http://www.securityfocus.com/bid/90584
http://googlechromereleases.blogspot.com/2016/05/stable-channel-update.html