diff -Nur php-openid-2.2.2.orig/Auth/Yadis/XML.php php-openid-2.2.2/Auth/Yadis/XML.php
--- php-openid-2.2.2.orig/Auth/Yadis/XML.php	2011-01-19 15:25:39.000000000 -0700
+++ php-openid-2.2.2/Auth/Yadis/XML.php	2013-08-23 21:39:13.818386179 -0600
@@ -235,6 +235,13 @@
         }
 
         if (!@$this->doc->loadXML($xml_string)) {
+ 	 // disable external entities and libxml errors
+ 	 $loader = libxml_disable_entity_loader(true);
+ 	 $errors = libxml_use_internal_errors(true);
+ 	 $parse_result = @$this->doc->loadXML($xml_string);
+ 	 libxml_disable_entity_loader($loader);
+ 	 libxml_use_internal_errors($errors);
+ 	if (!$parse_result) {
             return false;
         }