CVE-2026-41726

CVSS Score & Metrics

Base Score

6.5 / 10

Vector String

                                        CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H                                    

Vulnerability 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.

Vulnerability Details

Published Date

June 10, 2026

Last Modified

June 10, 2026

CWE ID

CWE-770

Source

NVD

Vendor

Spring

Product

Spring for Apache Kafka

External References

https://spring.io/security/cve-2026-41726

CVSS Score & Metrics

Vulnerability Description

Vulnerability Details

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