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Review reviewHigh

CVE-2026-41731

Spring Spring for Apache Kafka, Red Hat Fuse 7, Red Hat JBoss Enterprise Application Platform Expansion Pack

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.

CVSS
8.1
EPSS
0.51%
40.7% percentile
CISA KEV
Not listed
Published
2026.06.10
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability0.51%
Technical severityCVSS 8.1

Vulnerability overview

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 product and versions

Product
Spring Spring for Apache Kafka, Red Hat Fuse 7, Red Hat JBoss Enterprise Application Platform Expansion Pack
Affected versions
>= 4.0.0 < 4.0.5.1, >= 3.3.0 < 3.3.15.1, >= 3.2.0 < 3.2.14, >= 2.9.0 < 2.9.14, >= 2.8.0 < 2.8.12, 7.0.0
Fixed versions
2.8.12, 2.9.14, 3.2.14, 3.3.15.1, 4.0.5.1

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Spring Spring for Apache Kafka, Red Hat Fuse 7, Red Hat JBoss Enterprise Application Platform Expansion Pack and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE
CWE-502