CVE-2026-41726

A flaw was found in spring-kafka. When an application uses the DelegatingDeserializer, a malicious producer can exploit this vulnerability by sending records with unique, random spring.kafka.serialization.selector header values. This can cause the consumer's memory heap to grow without limits,...

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...