JsonKafkaHeaderMapper and DefaultKafkaHeaderMapper include java.net in their default trusted packages list. When these mappers are used — which is the default configuration for all @KafkaListener consumers — an external Kafka producer can inject a java.net.InetAddress type via the spring_json_header_types message header.
Spring for Apache Kafka 4.1.0
Spring for Apache Kafka 4.0.0 - 4.0.6
Spring for Apache Kafka 3.0.0 - 3.3.16
Spring for Apache Kafka 2.9.0 - 2.9.14
Spring for Apache Kafka 2.8.12 and earlier
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Fixes

Solution

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Workaround

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References
History

Thu, 27 Aug 2026 06:15:00 +0000

Type Values Removed Values Added
Description JsonKafkaHeaderMapper and DefaultKafkaHeaderMapper include java.net in their default trusted packages list. When these mappers are used — which is the default configuration for all @KafkaListener consumers — an external Kafka producer can inject a java.net.InetAddress type via the spring_json_header_types message header. Spring for Apache Kafka 4.1.0 Spring for Apache Kafka 4.0.0 - 4.0.6 Spring for Apache Kafka 3.0.0 - 3.3.16 Spring for Apache Kafka 2.9.0 - 2.9.14 Spring for Apache Kafka 2.8.12 and earlier
Title In Spring for Apache Kafka, SSRF via DNS resolution triggered by untrusted java.net types in header mapper default trusted packages
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: vmware

Published:

Updated: 2026-08-27T05:21:43.988Z

Reserved: 2026-07-04T18:13:09.973Z

Link: CVE-2026-59278

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-08-27T06:17:22.403

Modified: 2026-08-27T06:17:22.403

Link: CVE-2026-59278

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses

No weakness.