Vulnerability Description
The RabbitMQ Java client library allows Java and JVM-based applications to connect to and interact with RabbitMQ nodes. Prior to 5.33.1, src/main/java/com/rabbitmq/client/impl/ValueReader.java uses ValueReader.readBytes to accept a wire-declared contentLength below Integer.MAX_VALUE and allocate a byte array before checking the bytes available in the frame. A malicious AMQP peer can send a LongString or byte-array field with type tag S and a declared length such as 0x7FFFFFFE during the pre-authentication connection.start server-properties table, causing an approximately 2 GB allocation and OutOfMemoryError before readFully consumes data. The resulting memory exhaustion can terminate the JVM and cause denial of service. This issue is fixed in version 5.33.1.
Related Weaknesses (CWE)
References
- https://github.com/rabbitmq/rabbitmq-java-client/commit/388209356c6478088efce4d8
- https://github.com/rabbitmq/rabbitmq-java-client/commit/6a87a8dcdc8b4cc4b961a7cd
- https://github.com/rabbitmq/rabbitmq-java-client/pull/2007
- https://github.com/rabbitmq/rabbitmq-java-client/pull/2008
- https://github.com/rabbitmq/rabbitmq-java-client/releases/tag/v5.33.1
- https://github.com/rabbitmq/rabbitmq-java-client/security/advisories/GHSA-68mj-5
FAQ
What is CVE-2026-69219?
CVE-2026-69219 is a documented vulnerability. The RabbitMQ Java client library allows Java and JVM-based applications to connect to and interact with RabbitMQ nodes. Prior to 5.33.1, src/main/java/com/rabbitmq/client/impl/ValueReader.java uses Va...
How severe is CVE-2026-69219?
CVSS scoring is not yet available for CVE-2026-69219. Check NVD for updates.
Is there a patch for CVE-2026-69219?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.