---
id: CVE-2026-57221
title: RabbitMQ is a messaging and streaming broker
summary: >-
  RabbitMQ is a messaging and streaming broker. Prior to 3.13.15, 4.0.20,
  4.1.11, and 4.2.6, RabbitMQ does not perform authorization checks on passive
  queue.declare and exchange.declare AMQP 0-9-1 operations, allowing any
  authenticated use…
severity: none
cwe:
  - CWE-862
published: '2026-07-10'
updated: '2026-07-10'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-57221'
references:
  - url: >-
      https://github.com/rabbitmq/rabbitmq-server/commit/709a14e49e06c138a8cd672c9809ca34a2767962
    label: security-advisories@github.com
  - url: >-
      https://github.com/rabbitmq/rabbitmq-server/commit/dc3d1aa4f5c3331a425ee599b45be9423a2e83fc
    label: security-advisories@github.com
  - url: 'https://github.com/rabbitmq/rabbitmq-server/pull/16085'
    label: security-advisories@github.com
  - url: 'https://github.com/rabbitmq/rabbitmq-server/pull/16090'
    label: security-advisories@github.com
  - url: 'https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.2.6'
    label: security-advisories@github.com
  - url: >-
      https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-9q2j-2hq8-22r2
    label: security-advisories@github.com
tags:
  - nvd
epss: 0.00471
epssPercentile: 0.38086
ingestedAt: '2026-07-11T20:15:27.348Z'
---

## Overview

RabbitMQ is a messaging and streaming broker. Prior to 3.13.15, 4.0.20, 4.1.11, and 4.2.6, RabbitMQ does not perform authorization checks on passive queue.declare and exchange.declare AMQP 0-9-1 operations, allowing any authenticated user who can connect to a virtual host to enumerate queue and exchange names and read queue message and consumer counts. This issue is fixed in versions 3.13.15, 4.0.20, 4.1.11, and 4.2.6.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.