PT-2026-48322 · Spring · Spring For Apache Kafka

Published 2026-06-09 · Updated 2026-06-10 · CVE-2026-41726

NVD

CVSS v3.1

6.5

Medium

Base vector

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

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.

Fix

Allocation of Resources Without Limits

Weakness Enumeration

CWE-770

Related Identifiers

CVE-2026-41726

Affected Products

Spring For Apache Kafka

References · 2

• https://nvd.nist.gov/vuln/detail/CVE-2026-41726 · Security Note
• https://spring.io/security/cve-2026-41726 · Note