The RabbitMQ Java client library allows Java and JVM-based applications to connect to and interact with RabbitMQ nodes. Prior to 5.36.0, ValueReader.readShortstr decodes malformed UTF-8 bytes into replacement characters that can re-encode beyond the AMQP shortstr limit enforced by ValueWriter.writeShortstr. An attacker who can submit an RPC message with a malformed echoed property can cause reply publication in RpcServer.mainloop() or tutorial-style consumers to throw an unchecked exception before acknowledgement. The broker requeues the message, allowing the same message to disable replacement consumers until the queue is purged. This issue is fixed in version 5.36.0.
Fix
Patch, vendor advisory and mitigation references on NVD 4
- https://github.com/rabbitmq/rabbitmq-java-client/commit/b8bd750fa8c90690e859b18d6343b34421309020 Patch
- https://github.com/rabbitmq/rabbitmq-java-client/pull/2065 Patch
- https://github.com/rabbitmq/rabbitmq-java-client/security/advisories/GHSA-7822-rcf6-97fx Exploit, Vendor Advisory
- https://github.com/rabbitmq/rabbitmq-java-client/security/advisories/GHSA-7822-rcf6-97fx Exploit, Vendor Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 6.0 · vmwareNVD modified 2026-10-09 18:21
Affected (CPE criteria) 1
cpe:2.3:a:vmware:rabbitmq_java_client:*:*:*:*:*:*:*:*
References 5
- https://github.com/rabbitmq/rabbitmq-java-client/commit/b8bd750fa8c90690e859b18d6343b34421309020 Patch
- https://github.com/rabbitmq/rabbitmq-java-client/pull/2065 Patch
- https://github.com/rabbitmq/rabbitmq-java-client/releases/tag/v5.36.0 Release Notes
- https://github.com/rabbitmq/rabbitmq-java-client/security/advisories/GHSA-7822-rcf6-97fx Exploit, Vendor Advisory
- https://github.com/rabbitmq/rabbitmq-java-client/security/advisories/GHSA-7822-rcf6-97fx Exploit, Vendor Advisory