The HTTPOXY Vulnerability has been patched on all Alpine Hosting Plans.
CloudFlare instituted a fix on July 18, 2016. See their blog post here.
If you are not using CloudFlare learn more here:
If you are managing your own VPS or Dedicated Server running cPanel/WHM you can run the latest version of EasyApache v3.34.2 to install the patch for HTTPOXY.
Read the cPanel blog post here: