These are all security issues fixed in the gthumb-3.12.0-3.1 package on the GA media of openSUSE Tumbleweed.
{ "binaries": [ { "gthumb-devel": "3.12.0-3.1", "gthumb-lang": "3.12.0-3.1", "gthumb": "3.12.0-3.1" } ] }