CVE-2026-57221

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.

CVSS v3 5.0 MEDIUM

5.0^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.1 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://github.com/rabbitmq/rabbitmq-server/commit/709a14e49e06c138a8cd672c9809ca34a2767962	Patch
https://github.com/rabbitmq/rabbitmq-server/commit/dc3d1aa4f5c3331a425ee599b45be9423a2e83fc	Patch
https://github.com/rabbitmq/rabbitmq-server/pull/16085	Issue Tracking Patch
https://github.com/rabbitmq/rabbitmq-server/pull/16090	Issue Tracking Patch
https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.2.6	Release Notes
https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-9q2j-2hq8-22r2	Exploit Vendor Advisory
https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-9q2j-2hq8-22r2	Exploit Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:broadcom:rabbitmq_server:*:*:*:*:*:*:*:*

History

25 Oct 2026, 15:10

Type	Values Removed	Values Added
Summary		(es) RabbitMQ es un broker de mensajería y streaming. Antes de las versiones 3.13.15, 4.0.20, 4.1.11 y 4.2.6, RabbitMQ no realiza comprobaciones de autorización en operaciones AMQP 0-9-1 pasivas de ’queue.declare’ y ’exchange.declare’, lo que permite a cualquier usuario autenticado que pueda conectarse a un host virtual enumerar nombres de colas e intercambios y leer el recuento de mensajes de cola y de consumidores. Este problema está solucionado en las versiones 3.13.15, 4.0.20, 4.1.11 y 4.2.6.

Information

Published : 2026-07-10 21:16

Updated : 2026-10-25 15:10

NVD link : CVE-2026-57221

Mitre link : CVE-2026-57221

CVE.ORG link : CVE-2026-57221

JSON object : View

Products Affected

broadcom

rabbitmq_server

CWE

CWE-862

Missing Authorization

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