  virtual void requestInit() {
    m_use_error = false;
    m_errors.reset();
    m_entity_loader_disabled = false;
    xmlParserInputBufferCreateFilenameDefault(hphp_libxml_input_buffer);
  }
NVD is only using a subset of CWE for mapping instead of the entire CWE, and the weakness type is not covered by that subset.