Failed to marshall SAML object to DOM element – How to solve this Elasticsearch exception

Opster Team

August-23, Version: 7.7-8.9

Briefly, this error occurs when Elasticsearch struggles to convert a SAML object into a Document Object Model (DOM) element, which is essential for XML processing. This could be due to an incorrect SAML configuration or an issue with the XML libraries. To resolve this, ensure your SAML configuration is correct and up-to-date. Also, check if your XML libraries are functioning properly and are compatible with your current Elasticsearch version. If the problem persists, consider updating or reinstalling your Elasticsearch instance.

This guide will help you check for common problems that cause the log ” failed to marshall SAML object to DOM element ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: plugin.

Log Context

Log “failed to marshall SAML object to DOM element” class name is We extracted the following from Elasticsearch source code for those seeking an in-depth context :

 public Element toDomElement(XMLObject object) {
 try {
 return XMLObjectSupport.marshall(object);
 } catch (MarshallingException e) {
 throw new ElasticsearchSecurityException("failed to marshall SAML object to DOM element"; e);
 }  @SuppressForbidden(reason = "This is the only allowed way to construct a Transformer")
 public Transformer getHardenedXMLTransformer() throws TransformerConfigurationException {


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