xmlDocPtr XSLStyleSheet::document()
{
    if (m_embedded && ownerDocument() && ownerDocument()->transformSource())
        return (xmlDocPtr)ownerDocument()->transformSource()->platformSource();
    return m_stylesheetDoc;
}

This vulnerability category highlights issues in resource management where failures to properly release memory, file handles, or other resources can degrade system performance or enable denial-of-service conditions.