9092
Apache Kafka
Critical RiskTCP — Messaging
Port Overview
Port Number
9092
Service Name
Apache Kafka
Transport Protocol
TCP
Category
Messaging
Security Risk
Critical
Port Range
Registered (1024-49151)
What is Port 9092?
Port 9092 is the default port for Apache Kafka brokers, one of the most widely used distributed event streaming platforms for high-throughput data pipelines. Kafka producers and consumers connect to this port to publish and subscribe to message topics. Unsecured Kafka clusters on this port have been exploited for data theft and ransomware injection into message streams.
TCP
Messaging
Commonly Used
Security Considerations
Port 9092 (Apache Kafka) is classified as critical risk. This port should not be exposed to the public internet. The service transmits data without encryption, making it vulnerable to eavesdropping, credential theft, and man-in-the-middle attacks.
Recommendation: Block this port at the firewall. Use encrypted alternatives (SSH, SFTP, HTTPS) instead.