AIKIDO-2026-11176
spring-kafka is vulnerable to Allocation of Resources Without Limits or Throttling
55
Medium Risk
This Affects:
spring-kafkaTL;DR
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.
Who does this affect?
You are affected if you are using a version that falls within the vulnerable range and if you explicitly configured DelegatingDeserializer.
Background info
spring-kafka is vulnerable to Allocation of Resources Without Limits or Throttling in versions 0.0.1 - 2.8.11, 2.9.0 - 2.9.13, 3.0.0 - 3.2.13, 3.3.0 - 3.3.15 and 4.0.0 - 4.0.5.
How to fix this
Upgrade the org.springframework.kafka:spring-kafka library to the patch version.
Are You Affected?
Connect your repositories to instantly see whether vulnerable or malicious packages exist in your codebase.
Free. No credit card required.
SOC 2Compliant
ISO 27001Compliant