CVE-2026-41731

Name: CVE-2026-41731
Creator: NVD / NIST
Published: 2026-06-10T00:16:52.597+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.1/10EPSS 0.34%

Last modified Jun 22, 2026

CVE-2026-41731 is a high-severity vulnerability rated 8.1/10 on the CVSS scale. 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.. EPSS estimates a 0.34% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

8.1/10

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

0.34%

25.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-502

Affected Software

Vendor	Product	Versions
Vmware	Spring For Apache Kafka	>= 2.8.0, <= 2.8.11
Vmware	Spring For Apache Kafka	>= 2.9.0, <= 2.9.13
Vmware	Spring For Apache Kafka	>= 3.2.0, <= 3.2.13
Vmware	Spring For Apache Kafka	>= 3.3.0, <= 3.3.15
Vmware	Spring For Apache Kafka	>= 4.0.0, <= 4.0.5

References

https://spring.io/security/cve-2026-41731Vendor Advisory

Timeline

Published: Jun 10, 2026
Last Modified: Jun 22, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-41731?

How severe is CVE-2026-41731?

CVE-2026-41731 has a CVSS score of 8.1/10 (HIGH severity). The EPSS model estimates a 0.34% probability of exploitation in the next 30 days.

How do I fix CVE-2026-41731?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-41731?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST