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CVE-2026-106123— RabbitMQ Java client: plaintext broker credentials leaked in exception message from ConnectionFactoryConfigurator.load()

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 5.35.0 版本之前，当 AMQP URI 解析失败时， 方法会在包装后的异常中包含原始的 URI 值。由于 URI 中可能包含明文的用户名和密码，启动日志、应用性能监控系统（APM）、持续集成（CI）日志以及复制的堆栈跟踪信息都可能将代理（broker）的凭据泄露给不应访问这些凭据的用户。该问题已在 5.35.0 版本中修复。

CVSS 5.7 · Medium

Possible ATT&CK Techniques 1 AI

T1530 · Data from Cloud Storage

Affected Version Matrix 2

VendorProduct Version RangeStatus
com.rabbitmq amqp-client < 5.35.0 affected
rabbitmq rabbitmq-java-client < 5.35.0 affected
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I. Basic Information for CVE-2026-106123

Vulnerability Information
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Vulnerability Title
RabbitMQ Java client: plaintext broker credentials leaked in exception message from ConnectionFactoryConfigurator.load()
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 5.35.0, ConnectionFactoryConfigurator.load() includes the raw uri value in wrapped exceptions when AMQP URI parsing fails. Because the URI may contain a plaintext username and password, startup logs, application performance monitoring systems, CI logs, and copied stack traces can disclose broker credentials to users who should not have access to them. This issue is fixed in version 5.35.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
具传播性的恶意代码(病毒或蠕虫)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
rabbitmq rabbitmq-java-client < 5.35.0 -
com.rabbitmq amqp-client < 5.35.0 -

II. Public POCs for CVE-2026-106123

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III. Intelligence Information for CVE-2026-106123

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Other References for CVE-2026-106123 (4)

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

CVE-2026-106122 6.0 MEDIUM RabbitMQ: Malformed UTF-8 in shortstr properties permanently disables RPC consumers
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-509

V. Comments for CVE-2026-106123

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