Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-106122— RabbitMQ: Malformed UTF-8 in shortstr properties permanently disables RPC consumers

Quick assessment

Affected
rabbitmq rabbitmq-java-client
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

RabbitMQ Java 客户端库允许 Java 和基于 JVM 的应用程序连接并与 RabbitMQ 节点进行交互。在 5.36.0 版本之前， 方法会将格式错误的 UTF-8 字节解码为替换字符，这些替换字符在重新编码后可能超出 所执行的 AMQP shortstr 长度限制。攻击者若能提交包含恶意回显属性的 RPC 消息，可导致 或类似教程风格的消费者在发出确认消息前抛出未检查异常。随后，消息代理会将该消息重新入队，使得同一消息持续影响新的消费者，直至队列被清空。此问题已在 5.36.0 版本中修复。

CVSS 6.0 · Medium

Affected Version Matrix 2

VendorProduct Version RangeStatus
com.rabbitmq amqp-client < 5.36.0 affected
rabbitmq rabbitmq-java-client < 5.36.0 affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-106122

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
RabbitMQ: Malformed UTF-8 in shortstr properties permanently disables RPC consumers
Source: CVE Program / CVE List V5
Vulnerability 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 Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
编码错误
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
rabbitmq rabbitmq-java-client < 5.36.0 -
com.rabbitmq amqp-client < 5.36.0 -

II. Public POCs for CVE-2026-106122

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-106122

请登录查看更多情报信息。

Other References for CVE-2026-106122 (4)

Same Patch Batch · rabbitmq · 2026-10-06 · 3 CVEs total

CVE-2026-106123 5.7 MEDIUM RabbitMQ Java client: plaintext broker credentials leaked in exception message from Connec
CVE-2026-106121 4.9 MEDIUM RabbitMQ: JSONReader in the default JSON-RPC mapper never terminates on truncated input, c

IV. Related Vulnerabilities

Same product: rabbitmq-java-client
Same vendor: rabbitmq
Same weakness: CWE-172

V. Comments for CVE-2026-106122

No comments yet

Leave a comment