CVE-2026-106122

Name	CVE-2026-106122
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.
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs	1150244

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
rabbitmq-java-client (PTS)	bookworm, trixie	5.0.0-1.1	vulnerable
	sid	5.0.0-2	vulnerable

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
rabbitmq-java-client	source	(unstable)	(unfixed)			1150244

Notes

https://github.com/rabbitmq/rabbitmq-java-client/security/advisories/GHSA-7822-rcf6-97fx
https://github.com/rabbitmq/rabbitmq-java-client/pull/2065
Fixed by: https://github.com/rabbitmq/rabbitmq-java-client/commit/b8bd750fa8c90690e859b18d6343b34421309020 (v5.36.0)