CVE-2023-46120

Public Exploit
RabbitMQ Java client's lack of message size limitation leads to remote DoS attack

Description

The RabbitMQ Java client library allows Java and JVM-based applications to connect to and interact with RabbitMQ nodes. `maxBodyLebgth` was not used when receiving Message objects. Attackers could send a very large Message causing a memory overflow and triggering an OOM Error. Users of RabbitMQ may suffer from DoS attacks from RabbitMQ Java client which will ultimately exhaust the memory of the consumer. This vulnerability was patched in version 5.18.0.

Category

4.9
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.42%
Vendor Advisory github.com
Affected: rabbitmq rabbitmq-java-client
Published at:
Updated at:

References

Link Tags
https://github.com/rabbitmq/rabbitmq-java-client/security/advisories/GHSA-mm8h-8587-p46h vendor advisory exploit
https://github.com/rabbitmq/rabbitmq-java-client/issues/1062 patch issue tracking
https://github.com/rabbitmq/rabbitmq-java-client/commit/714aae602dcae6cb4b53cadf009323ebac313cc8 patch
https://github.com/rabbitmq/rabbitmq-java-client/releases/tag/v5.18.0 release notes

Frequently Asked Questions

What is the severity of CVE-2023-46120?
CVE-2023-46120 has been scored as a medium severity vulnerability.
How to fix CVE-2023-46120?
To fix CVE-2023-46120, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-46120 being actively exploited in the wild?
It is possible that CVE-2023-46120 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-46120?
CVE-2023-46120 affects rabbitmq rabbitmq-java-client.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.