CVE-2026-59278 — MEDIUM (6.5)

Q: How severe is CVE-2026-59278?

CVE-2026-59278 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2026-59278?

Check the references section above for vendor advisories and patch information. Affected products include: Vmware Spring For Apache Kafka.

Vulnerability 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

CVSS Score

6.5

MEDIUM

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

LOW

Integrity

LOW

Availability

NONE

Affected Products

Vendor	Product	Versions
Vmware	Spring For Apache Kafka	< 2.8.13

Related Weaknesses (CWE)

CWE-918

References

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

FAQ

What is CVE-2026-59278?

CVE-2026-59278 is a vulnerability with a CVSS score of 6.5 (MEDIUM). 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 cons...

How severe is CVE-2026-59278?

CVE-2026-59278 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-59278?

Check the references section above for vendor advisories and patch information. Affected products include: Vmware Spring For Apache Kafka.