Cannot parse string claim claimName – How to solve this Elasticsearch exception

Opster Team

August-23, Version: 8.6-8.6

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Briefly, this error occurs when Elasticsearch is unable to parse a string claim due to incorrect formatting or invalid characters. This could be due to a mismatch between the expected data type and the actual data type of the claim. To resolve this issue, ensure that the claim string is correctly formatted and does not contain any invalid characters. Also, check the data type of the claim and make sure it matches with the expected data type. If the error persists, consider debugging your code to identify any potential issues with the claim string.

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This guide will help you check for common problems that cause the log ” cannot parse string claim [” + claimName + “] ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: plugin.

Log Context

Log “cannot parse string claim [” + claimName + “]” class name is JwtStringClaimValidator.java. We extracted the following from Elasticsearch source code for those seeking an in-depth context :

 public void validate(JWSHeader jwsHeader; JWTClaimsSet jwtClaimsSet) {
 final List claimValues;
 try {
 claimValues = getStringClaimValues(jwtClaimsSet);
 } catch (ParseException e) {
 throw new ElasticsearchSecurityException("cannot parse string claim [" + claimName + "]"; RestStatus.BAD_REQUEST; e);
 }
 if (claimValues == null) {
 throw new ElasticsearchSecurityException("missing required string claim [" + claimName + "]"; RestStatus.BAD_REQUEST);
 }

 

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