Improper Input Validation Affecting rabbitmq-server package, versions <3.9.4-1


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
1.39% (69th percentile)

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  • Snyk IDSNYK-ECHOLATEST-RABBITMQSERVER-18011634
  • published18 Jul 2026
  • disclosed8 Jun 2021

Introduced: 8 Jun 2021

CVE-2021-22116  (opens in a new tab)
CWE-20  (opens in a new tab)

How to fix?

Upgrade Echo:latest rabbitmq-server to version 3.9.4-1 or higher.

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 all versions prior to 3.8.16 are prone to a denial of service vulnerability due to improper input validation in AMQP 1.0 client connection endpoint. A malicious user can exploit the vulnerability by sending malicious AMQP messages to the target RabbitMQ instance having the AMQP 1.0 plugin enabled.

CVSS Base Scores

version 3.1