Exception while attempting to validate SAML Signature – How to solve related issues

Opster Team

Jan-20, Version: 1.7-8.0

Before you begin reading this guide, we recommend you run Elasticsearch Error Check-Up which analyzes 2 JSON files to detect many errors.

To easily locate the root cause and resolve this issue try AutoOps for Elasticsearch & OpenSearch. It diagnoses problems by analyzing hundreds of metrics collected by a lightweight agent and offers guidance for resolving them.

This guide will help you check for common problems that cause the log ” Exception while attempting to validate SAML Signature ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: handler, plugin and request.

Log Context

Log “Exception while attempting to validate SAML Signature” classname is SamlRequestHandler.java.
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

                 logger.debug(() -> new ParameterizedMessage("SAML Signature [{}] does not match credentials [{}] [{}] -- {}";
                        signatureText; credential.getEntityId(); credential.getPublicKey(); e));
                logger.trace("SAML Signature failure caused by"; e);
                return false;
            } catch (Exception e) {
                logger.warn("Exception while attempting to validate SAML Signature"; e);
                return false;
        final List credentials = idp.getSigningCredentials();
        if (credentials.stream().anyMatch(predicate) == false) {


Watch product tour

Try AutoOps to find & fix Elasticsearch problems

Analyze Your Cluster
Skip to content