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CVE PROGRAM SOURCE RECORD8.1 High

CVE-2026-41731

In Spring for Apache Kafka, overly broad trusted-package matching in header mappers exposes JDK classes to deserialization

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Status
Published
Published
Updated
Assigning organization
vmware

Description

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Spring Spring for Apache Kafka

Default version status: unaffected

  • 4.0.0 to < 4.0.5.1affected
  • 3.3.0 to < 3.3.15.1affected
  • 3.2.0 to < 3.2.14affected
  • 2.9.0 to < 2.9.14affected
  • 2.8.0 to < 2.8.12affected

References