WebKitGTK+ versions prior to 2.10.5 suffers from memory corruption, code execution, missing restriction, and denial of service vulnerabilities.
da555d8e93db6cdeb033676ea81c436cedf68e38b4cef49ef2a4040f40843562
Apple Security Advisory 2016-03-21-6 - Safari 9.1 is now available and addresses code execution, interface spoofing, denial of service, and various other vulnerabilities.
a8eb642d04c965e996635f15999f220f4f3fa6eb33970813cc774fc9032a8db0