system
Identify the affected product in <CVE-2019-12399>.
user
Which product is affected by <CVE-2019-12399>?
assistant
The affected product is Kafka and version: Apache Kafka 2.0.0, 2.0.1, 2.1.0, 2.1.1, 2.2.0, 2.2.1, 2.3.0.