CVE-2026-106122

RabbitMQ: Malformed UTF-8 in shortstr properties permanently disables RPC consumers

Published Oct 6, 2026 CVSS 4.0 · 6 Medium EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-7822-rcf6-97fx RabbitMQ: Malformed UTF-8 in shortstr properties permanently disables RPC consumers
History
Type Values Removed Values Added
First Time appeared Vmware
Vmware rabbitmq Java Client
CPEs cpe:2.3:a:vmware:rabbitmq_java_client:*:*:*:*:*:*:*:*
Vendors & Products Vmware
Vmware rabbitmq Java Client
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

Type Values Removed Values Added
First Time appeared Rabbitmq
Rabbitmq amqp-client
Rabbitmq java-client
Vendors & Products Rabbitmq
Rabbitmq amqp-client
Rabbitmq java-client
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title RabbitMQ: Malformed UTF-8 in shortstr properties permanently disables RPC consumers
Weaknesses CWE-172
CWE-248
References
Metrics cvssV4_0

{'score': 6, 'vector': '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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Oct 6, 2026, 6:23 PM
Reserved
Oct 6, 2026, 3:33 PM
Status
Analyzed
Published
Oct 6, 2026, 7:17 PM
Modified
Oct 9, 2026, 6:21 PM