Deserialization Vulnerability in Spring for Apache Kafka by VMware
CVE-2026-41731

8.1HIGH

Key Information:

Vendor

Spring

Status
Spring For Apache Kafka
Vendor
CVE Published:
9 June 2026

What is CVE-2026-41731?

A flaw in the JsonKafkaHeaderMapper and deprecated DefaultKafkaHeaderMapper allows type headers from trusted packages to be matched via a prefix check. This trust model could lead to arbitrary JDK types being deserialized when a producer supplies crafted header values, potentially compromising system integrity.

Affected Version(s)

Spring for Apache Kafka 4.0.0 < 4.0.5.1

Spring for Apache Kafka 3.3.0 < 3.3.15.1

Spring for Apache Kafka 3.2.0 < 3.2.14

References

https://spring.io/security/cve-2026-41731

CVSS V3.1

Score:
8.1
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.