CVE-2026-59278

Summary

JsonKafkaHeaderMapper and DefaultKafkaHeaderMapper include java.net in their default trusted packages list. When these mappers are used — which is the default configuration for all @KafkaListener consumers — an external Kafka producer can inject a java.net.InetAddress type via the spring_json_header_types message header. Spring for Apache Kafka 4.1.0 Spring for Apache Kafka 4.0.0 - 4.0.6 Spring for Apache Kafka 3.0.0 - 3.3.16 Spring for Apache Kafka 2.9.0 - 2.9.14 Spring for Apache Kafka 2.8.12 and earlier

Affected Software

VendorProductVersion RangeStatus
SpringSpring for Apache Kafka4.1.0affected
SpringSpring for Apache Kafka4.0.0 <= 4.0.6affected
SpringSpring for Apache Kafka3.0.0 <= 3.3.16affected
SpringSpring for Apache Kafka2.9.0 <= 2.9.14affected
SpringSpring for Apache Kafka0 <= 2.8.12affected

Weaknesses

  • CWE-918 Server-Side Request Forgery (SSRF)

References