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CVE-2026-41731

33
FAUCET Score

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.

First published: Jun 9, 2026Last modified: Jun 27, 2026

Impacted Technologies

VendorProductVersion(s)CPE
>= 2.8.0, < 2.8.12CPE matchmatch criteria
cpe:2.3:a:vmware:spring_for_apache_kafka:*:*:*:*:*:*:*:*
>= 2.9.0, < 2.9.14CPE matchmatch criteria
cpe:2.3:a:vmware:spring_for_apache_kafka:*:*:*:*:*:*:*:*
>= 3.2.0, < 3.2.14CPE matchmatch criteria
cpe:2.3:a:vmware:spring_for_apache_kafka:*:*:*:*:*:*:*:*
>= 3.3.0, < 3.3.15.1CPE matchmatch criteria
cpe:2.3:a:vmware:spring_for_apache_kafka:*:*:*:*:*:*:*:*
>= 4.0.0, < 4.0.5.1CPE matchmatch criteria
cpe:2.3:a:vmware:spring_for_apache_kafka:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.1HIGH

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

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.2
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.51%
Probability of exploitation in next 30 days
EPSS Percentile
40.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0051 is in the 14th percentile among its peer group of 8,915 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

mavenpatch availablevia ghsa
Product: org.springframework.kafka:spring-kafkaFixed in: 4.0.6
mavenpatch availablevia ghsa
Product: org.springframework.kafka:spring-kafkaFixed in: 3.3.16

Vendor Advisories (1)

mavenGHSA-xq69-5h5v-x9x4high

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

Jun 10, 2026

References

access.redhat.com / security/cve/CVE-2026-41731
Third Party Advisory
bugzilla.redhat.com / show_bug.cgi
Issue TrackingThird Party Advisory
security.access.redhat.com / data/csaf/v2/vex/2026/cve-2026-41731.json
Third Party Advisory
spring.io / security/cve-2026-41731
Vendor Advisory