GHSA-xvfq-4q6q-gxx7MediumCVSS 6.5

In Spring for Apache Kafka, unbounded delegate cache keyed on user-controlled, potentially malicious selector header

Published
June 10, 2026
Last Modified
June 12, 2026

🔗 CVE IDs covered (1)

CVE-2026-41726 →

📋 Description

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.

🎯 Affected products5

  • maven/org.springframework.kafka:spring-kafka:>= 4.0.0, <= 4.0.5
  • maven/org.springframework.kafka:spring-kafka:>= 3.3.0, <= 3.3.15
  • maven/org.springframework.kafka:spring-kafka:>= 3.2.0, <= 3.2.13
  • maven/org.springframework.kafka:spring-kafka:>= 2.9.0, <= 2.9.13
  • maven/org.springframework.kafka:spring-kafka:<= 2.8.11

🔗 References (5)