Posted by Khashayar Fereidani on Jun 20# PHP 8.5.7 dom_xml_serialization_algorithm() stack-overflow Author: Khashayar Fereidani Disclosure Date: 2026-06-18 Advisory: https://fereidani.com/php-857-domxmlserializationalgorithm-stack-overflow Contact: https://fereidani.com/contact ## Description The dom_xml_serialization_algorithm() and dom_xml_serialize_element_node() functions in ext/dom/xml_serializer.c rely on unbounded recursion to serialize XML nodes....