CVE-2026-41731
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.
- Score
- CVSS 3.1 8.1 High
- Status
- Analyzed - security@vmware.com
- Published
- 2026-06-10
- Last modified
- 2026-08-05
- Weaknesses
- CWE-502
Affected products
- Fuse (Redhat)
- Jboss Enterprise Application Platform Expansion Pack (Redhat)
- Jboss Fuse (Redhat)
- Jbosseapxp (Redhat)
- Spring For Apache Kafka (Spring)
- Spring For Apache Kafka (Vmware)
References
- https://spring.io/security/cve-2026-41731
- https://access.redhat.com/security/cve/CVE-2026-41731
- https://bugzilla.redhat.com/show_bug.cgi?id=2487375
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-41731.json
