Briefly, this error occurs when the Elasticsearch security feature fails to exchange an authorization code for an ID token during the OAuth2 authentication process. This could be due to incorrect configuration, invalid authorization code, or issues with the identity provider. To resolve this, ensure that the Elasticsearch security settings are correctly configured, the authorization code is valid, and the identity provider is functioning properly. Also, check the network connectivity between Elasticsearch and the identity provider.
This guide will help you check for common problems that cause the log ” Failed to exchange code for Id Token. Code=[{}]; Description=[{}] ” 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 exchange code for Id Token. Code=[{}]; Description=[{}]” class name is OpenIdConnectAuthenticator.java. We extracted the following from Elasticsearch source code for those seeking an in-depth context :
final String json = EntityUtils.toString(entity; encoding);
LOGGER.warn("Received Token Response from OP with status [{}] and content [{}]"; responseStatus; json);
if (RestStatus.BAD_REQUEST == responseStatus) {
final TokenErrorResponse tokenErrorResponse = TokenErrorResponse.parse(JSONObjectUtils.parse(json));
tokensListener.onFailure(
new ElasticsearchSecurityException("Failed to exchange code for Id Token. Code=[{}]; Description=[{}]";
tokenErrorResponse.getErrorObject().getCode(); tokenErrorResponse.getErrorObject().getDescription()));
} else {
tokensListener.onFailure(new ElasticsearchSecurityException("Failed to exchange code for Id Token"));
}
} else {
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