PT-2026-48327 · Spring · Spring For Apache Kafka

Published 2026-06-09 · Updated 2026-06-10 · CVE-2026-41731

NVD

CVSS v3.1

8.1

High

Base vector

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

JsonKafkaHeaderMapper and the deprecated DefaultKafkaHeaderMapper matched type headers against trusted packages using a prefix check, meaning that trusting any package implicitly trusted all of its subpackages. Combined with Jackson's default bean deserialization, a producer could supply crafted header values that caused the consumer to deserialize arbitrary JDK types.

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

Deserialization of Untrusted Data

Weakness Enumeration

CWE-502

Related Identifiers

CVE-2026-41731

Affected Products

Spring For Apache Kafka

References · 2

• https://nvd.nist.gov/vuln/detail/CVE-2026-41731 · Security Note
• https://spring.io/security/cve-2026-41731 · Note