Improperly Implemented Security Check for Standard Affecting rabbitmq-server4.3 package, versions <0:4.3.2-1.hum1


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.5% (41st percentile)

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  • Snyk IDSNYK-RHEL10-RABBITMQSERVER43-19254472
  • published25 Aug 2026
  • disclosed10 Jul 2026

Introduced: 10 Jul 2026

CVE-2026-57216  (opens in a new tab)
CWE-358  (opens in a new tab)

How to fix?

Upgrade RHEL:10 rabbitmq-server4.3 to version 0:4.3.2-1.hum1 or higher.
This issue was patched in RHSA-2026:35939.

NVD Description

Note: Versions mentioned in the description apply only to the upstream rabbitmq-server4.3 package and not the rabbitmq-server4.3 package as distributed by RHEL. See How to fix? for RHEL:10 relevant fixed versions and status.

RabbitMQ is a messaging and streaming broker. Prior to 3.13.15, 4.0.20, 4.1.11, and 4.2.6, AMQP 0-9-1, AMQP 1.0, and Stream Protocol authentication can allow a loopback-restricted user such as guest to connect remotely when traffic is accepted through a trusted PROXY-protocol path and the backend listener is loopback-bound because the loopback check uses the listener-side socket address instead of the real client source. This issue is fixed in versions 3.13.15, 4.0.20, 4.1.11, and 4.2.6.

CVSS Base Scores

version 3.1