High severity8.1NVD Advisory· Published Jun 10, 2026· Updated Jun 10, 2026
CVE-2026-41731
CVE-2026-41731
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
org.springframework.kafka:spring-kafkaMaven | >= 4.0.0, < 4.0.6 | 4.0.6 |
org.springframework.kafka:spring-kafkaMaven | >= 3.3.0, < 3.3.16 | 3.3.16 |
org.springframework.kafka:spring-kafkaMaven | >= 3.2.0, <= 3.2.13 | — |
org.springframework.kafka:spring-kafkaMaven | >= 2.9.0, <= 2.9.13 | — |
org.springframework.kafka:spring-kafkaMaven | <= 2.8.11 | — |
Affected products
2- Range: 4.0.0 - 4.0.5, 3.3.0 - 3.3.15, 3.2.0 - 3.2.13, 2.9.0 - 2.9.13, 2.8.0 - 2.8.11
- Range: 4.0.0 - 4.0.5, 3.3.0 - 3.3.15, 3.2.0 - 3.2.13, 2.9.0 - 2.9.13, 2.8.0 - 2.8.11
Patches
Vulnerability mechanics
References
3- github.com/advisories/GHSA-xq69-5h5v-x9x4ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-41731ghsaADVISORY
- spring.io/security/cve-2026-41731nvdWEB
News mentions
2- Spring Projects: 25 Vulnerabilities Disclosed, Including SpEL Injection and Deserialization FlawsVypr Intelligence · Jun 10, 2026
- Apache HTTP Server and Answer: 22 Vulnerabilities Disclosed, Including Critical FlawsVypr Intelligence · Jun 10, 2026