Incorrect Authorization Affecting rabbitmq-server package, versions *


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.32% (23rd percentile)

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  • Snyk IDSNYK-ECHOLATEST-RABBITMQSERVER-20153828
  • published26 Sept 2026
  • disclosed25 Sept 2026

Introduced: 25 Sep 2026

NewCVE-2026-67411  (opens in a new tab)
CWE-863  (opens in a new tab)

How to fix?

There is no fixed version for Echo:latest rabbitmq-server.

NVD Description

Note: Versions mentioned in the description apply only to the upstream rabbitmq-server package and not the rabbitmq-server package as distributed by Echo. See How to fix? for Echo:latest relevant fixed versions and status.

RabbitMQ is a messaging and streaming broker. From 3.13.0 until 3.13.18, 4.0.23, 4.1.14, 4.2.9, and 4.3.3, native MQTT and MQTT over WebSocket behind a trusted PROXY Protocol frontend could lose the proxy-derived client address before the MQTT authentication path checked loopback_users, causing the frontend-to-broker address to be treated as loopback. An attacker who can reach the trusted frontend and has valid credentials for a loopback-restricted account can therefore bypass the source-address restriction; the issue does not bypass password authentication. This issue is fixed in versions 3.13.18, 4.0.23, 4.1.14, 4.2.9, and 4.3.3.

CVSS Base Scores

version 3.1