CVE-2026-41726
Fixed upstream EPSS <1%CVSS 6.5
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 through 4.0.5; 3.3.0 through 3.3.15; 3.2.0 through 3.2.13; 2.9.0 through 2.9.13; 2.8.0 through 2.8.11.
Products: Spring For Apache Kafka
Fixed upstream
| Ecosystem | Package | Fixed in |
|---|---|---|
| Maven | org.springframework.kafka:spring-kafka | 4.0.6 |
| Maven | org.springframework.kafka:spring-kafka | 3.3.16 |
| Maven | org.springframework.kafka:spring-kafka | no fix |