diff -urNp old/app/xcf/xcf.c new/app/xcf/xcf.c

--- old/app/xcf/xcf.c	2017-04-30 23:47:39.000000000 +0200

+++ new/app/xcf/xcf.c	2018-01-04 11:56:31.399888783 +0100

@@ -318,7 +318,8 @@ xcf_load_invoker (GimpProcedure      *pr

         {

           info.file_version = 0;

         }

-      else if (id[9] == 'v')

+      else if (id[9] == 'v' &&

+               id[13] == '\0')

         {

           info.file_version = atoi (id + 10);

         }