CVE-2026-59278

In Spring for Apache Kafka, SSRF via DNS resolution triggered by untrusted java.net types in header mapper default trusted packages

State: Published
Severity: 6.5 Medium
Published: Aug 27, 2026
Updated: Aug 27, 2026
Reserved: Jul 4, 2026

Read the record on cve.org

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

Scores

CVSS	Score	Vector	Source
3.1	6.5 Medium	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N	vmware

Weaknesses

CWE-918 Server-Side Request Forgery (SSRF)

Affected Products

Product	Versions
Spring for Apache KafkaSpring	4.1.0Affected 4.0.0 through 4.0.6Affected 3.0.0 through 3.3.16Affected 2.9.0 through 2.9.14Affected 2.8.12 and earlierAffected

References

https://spring.io/security/cve-2026-59278

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