These are all security issues fixed in the libxml2-2-2.9.12-1.2 package on the GA media of openSUSE Tumbleweed.
{ "binaries": [ { "libxml2-devel-32bit": "2.9.12-1.2", "libxml2-devel": "2.9.12-1.2", "libxml2-2": "2.9.12-1.2", "libxml2-tools": "2.9.12-1.2", "libxml2-doc": "2.9.12-1.2", "libxml2-2-32bit": "2.9.12-1.2" } ] }