CVE-2026-33557

A possible security vulnerability has been identified in Apache Kafka. By default, the broker property sasl.oauthbearer.jwt.validator.class is set to org.apache.kafka.common.security.oauthbearer.DefaultJwtValidator. It accepts any JWT token without validating its signature, issuer, or audience. A...

CVE-2026-33557

A security vulnerability exists in Apache Kafka due to the default configuration of the sasl.oauthbearer.jwt.validator.class property, which is set to org.apache.kafka.common.security.oauthbearer.DefaultJwtValidator. This validator fails to verify the signature, issuer, or audience of JWT tokens....