for year in {2005..2018} ; do
 
  curl -s 'https://github.com/search?utf8=%E2%9C%93&q=CVE-'$year 
   |urlgrep 
   |grep -v 'count?q=' 
   |grep -i CVE 
   |cut -d'&' | while read github_url ; do 
 
     git clone "$github_url"
 
   done
 
  sleep 30
 
done