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Vulnerability · Published Oct 6, 2026 · Assigned by GitHub_M

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

Medium 5.7

In plain English

A medium-severity security flaw in amqp-client from com.rabbitmq. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 15% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 4.0)5.7Medium
Exploit odds (30 days)0.2%top 84.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official 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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12rabbitmq-java-clientno fix listedDEBIAN-CVE-2026-106123
Debian:13rabbitmq-java-clientno fix listedDEBIAN-CVE-2026-106123
Mavencom.rabbitmq:amqp-client5.35.0GHSA-h6w7-qmcm-q6xr
Ubuntu:22.04:LTSrabbitmq-java-clientno fix listedUBUNTU-CVE-2026-106123
Ubuntu:24.04:LTSrabbitmq-java-clientno fix listedUBUNTU-CVE-2026-106123
Ubuntu:26.04:LTSrabbitmq-java-clientno fix listedUBUNTU-CVE-2026-106123
Ubuntu:26.10rabbitmq-java-clientno fix listedUBUNTU-CVE-2026-106123

Affected products (as reported)

VendorProductVersions
rabbitmq rabbitmq-java-client < 5.35.0
com.rabbitmq amqp-client < 5.35.0

Weakness: CWE-209 · Vector: 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

References