CVE-2026-41726: Allocation of Resources Without Limits or Throttling

When an application opts into DelegatingDeserializer, a producer can grow the consumer's heap without bound by sending records with unique random spring.kafka.serialization.selector header values, eventually causing GC thrash and OutOfMemoryError. Affected versions: Spring for Apache Kafka 4.0.0...

PT-2026-48322

Name of the Vulnerable Software and Affected Versions Spring for Apache Kafka versions 4.0.0 through 4.0.5 Spring for Apache Kafka versions 3.3.0 through 3.3.15 Spring for Apache Kafka versions 3.2.0 through 3.2.13 Spring for Apache Kafka versions 2.9.0 through 2.9.13 Spring for Apache Kafka...