In Talend Studio before 7.3.1-R2022-10 and 8.x before 8.0.1-R2022-09, microservices allow unauthenticated access to the Jolokia endpoint of the microservice. This allows for remote access to the JVM via the Jolokia JMX-HTTP bridge.
https://www.talend.com/security/incident-response/#CVE-2023-31444