CVE-2026-106122

High

Description

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.

SeverityHigh
CVSS7.5
Exploit probability—
ProductVmware Rabbitmq Java Client
PublishedOct 6, 2026
First seenOct 6, 2026

How to fix

Update
  • vmware rabbitmq_java_client5.36.0 or later
  • com.rabbitmq:amqp-client5.36.0 or later

Affected products

ProductAffected versionsFixed in
vmware rabbitmq_java_clientv < 5.36.05.36.0
com.rabbitmq:amqp-clientMavenv < 5.36.05.36.0

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CVE-2026-106122 · Vmware Rabbitmq Java Client · Dark Radar