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CVE-2026-106121

4.9 · MEDIUM

The RabbitMQ Java client library allows Java and JVM-based applications to connect to and interact with RabbitMQ nodes.

Published Oct 6, 2026vmwareCWE-835EPSS 0.53%

Overview

CVE-2026-106121 is a medium-severity vulnerability affecting vmware rabbitmq_java_client. It was published on October 6, 2026 and has a CVSS 3.1 base score of 4.9 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 4.9, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

The RabbitMQ Java client library allows Java and JVM-based applications to connect to and interact with RabbitMQ nodes. Prior to 5.37.0, com.rabbitmq.tools.json.JSONReader.read() fails to terminate when input ends inside a quoted string or a line comment because its string and whitespace scanners do not stop at CharacterIterator.DONE. The default DefaultJsonRpcMapper passes JSON-RPC message bodies to this parser for JsonRpcServer and client replies. A truncated string causes the parser to append replacement end markers until heap exhaustion, while a line comment without a terminating newline can keep a thread consuming CPU indefinitely, resulting in denial of service. This issue is fixed in version 5.37.0.

Remediation

Check the references section for vendor advisories and patches from vmware. Update rabbitmq_java_client to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus
vmwarerabbitmq_java_client>= 0, < 5.37.0Affected

References

GitHubgithub.com/rabbitmq/rabbitmq-java-client/commit/25fad817291feff3195c32620117d295598f8b41GitHubgithub.com/rabbitmq/rabbitmq-java-client/pull/2100GitHubgithub.com/rabbitmq/rabbitmq-java-client/releases/tag/v5.37.0GitHubgithub.com/rabbitmq/rabbitmq-java-client/security/advisories/GHSA-cqgh-8p3p-mx4mGitHubgithub.com/rabbitmq/rabbitmq-java-client/security/advisories/GHSA-cqgh-8p3p-mx4m

How CyberStrike helps

Frequently asked questions

What is CVE-2026-106121?

CVE-2026-106121 is a medium-severity vulnerability affecting vmware rabbitmq_java_client. It was published on October 6, 2026 and has a CVSS 3.1 base score of 4.9 (MEDIUM).

How severe is CVE-2026-106121?

This vulnerability has a CVSS 3.1 base score of 4.9, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-106121?

Check the references section for vendor advisories and patches from vmware. Update rabbitmq_java_client to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-106121?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-106121 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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