The Crypt_GPG extension before 1.6.7 for PHP does not prevent additional options in GPG calls, which presents a risk for certain environments and GPG versions.
{ "binaries": [ { "binary_name": "php-crypt-gpg", "binary_version": "1.4.0-1ubuntu2" } ] }
{ "binaries": [ { "binary_name": "php-crypt-gpg", "binary_version": "1.6.7-2" } ] }