CVE-2026-13699 Databroker 0.6.1 PublishValue missing data_point panic

In Eclipse KUKSA Databroker version 0.6.1, the kuksa.val.v2.VAL/PublishValue gRPC handler fails to validate the existence of the optional datapoint field in PublishValueRequest. When a request contains a valid signalid but omits datapoint, the server directly calls unwrap on request.datapoint,...