GHSA-xvfq-4q6q-gxx7

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

At a glance

Published
Updated
CVE
CVE-2026-41726
CVSS_V3
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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 packages

PackageVersions
Maven · org.springframework.kafka:spring-kafkaintroduced 4.0.0, fixed 4.0.6
Maven · org.springframework.kafka:spring-kafkaintroduced 3.3.0, fixed 3.3.16
Maven · org.springframework.kafka:spring-kafkaintroduced 3.2.0, last affected 3.2.13
Maven · org.springframework.kafka:spring-kafkaintroduced 2.9.0, last affected 2.9.13
Maven · org.springframework.kafka:spring-kafkaintroduced 0, last affected 2.8.11

References

Sources

SourceLicence
OSV.devCC-BY 4.0 — GitHub Advisory Database