CVE-2026-106122RabbitMQ: Malformed UTF-8 in shortstr properties permanently disables RPC consumers
Updated under an hour ago ()
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It affects rabbitmq-java-client and 2 other products. Add what you run to find out whether that includes you.
EPSS puts the chance of exploitation in the next 30 days at 0.48%, higher than 40% of scored CVEs.
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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.
- CVSS
- 6.0 MEDIUM (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
- Weakness (CWE)
- CWE-172, CWE-248
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- 0.48% (percentile 40)
- Assigned by
- GitHub_M
- NVD analysis
- Analyzed
- Record last updated
- Oct 6, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
rabbitmq rabbitmq-java-client rabbitmq:java_client (from the name) | before 5.36.0 | CNA record |
com.rabbitmq amqp-client com.rabbitmq:amqp_client (from the name) | before 5.36.0 | CNA record |
vmware rabbitmq_java_client vmware:rabbitmq_java_client | before 5.36.0 | NVD |
References
- https://github.com/rabbitmq/rabbitmq-java-client/security/advisories/GHSA-7822-rcf6-97fxx-refsource-confirm, exploit, vendor-advisory
- https://github.com/rabbitmq/rabbitmq-java-client/pull/2065x-refsource-misc, patch
- https://github.com/rabbitmq/rabbitmq-java-client/commit/b8bd750fa8c90690e859b18d6343b34421309020x-refsource-misc, patch
- https://github.com/rabbitmq/rabbitmq-java-client/releases/tag/v5.36.0x-refsource-misc, release-notes
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.