Riskcovery

CVE-2026-41731

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

State
Published
Severity
8.1 High
Published
Jun 9, 2026
Updated
Aug 5, 2026
Reserved
Apr 22, 2026

Read the record on cve.org

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.

Scores

CVSSScoreVectorSource
3.18.1 HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:Hvmware
3.18.1 HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:Hredhat-SADP

Weaknesses

  • CWE-502 Deserialization of Untrusted Data

Affected Products

ProductVersions
Spring for Apache KafkaSpring
  • 4.0.0 to before 4.0.5.1Affected
  • 3.3.0 to before 3.3.15.1Affected
  • 3.2.0 to before 3.2.14Affected
  • 2.9.0 to before 2.9.14Affected
  • 2.8.0 to before 2.8.12Affected

References

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