🛡️ CVE-2026-57221 — rabbitmq-server

🟡 CVSS 5.0 — Medium ⚠️ Exploit Public CWE-862 NVD
5.0
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

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.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is changed, meaning a successful attack can affect components beyond the vulnerable one. Rated impact: confidentiality low, integrity none, availability none.

Weakness class

CVE-2026-57221 is classified as CWE-862: Missing Authorization. No authorisation check is performed before carrying out a restricted action.

Affected software

CVE-2026-57221 is recorded against 1 package.

  • rabbitmq-server (from 3.13.0 up to 4.2.6)

Timeline and source

Published on 10 July 2026 and last revised on 13 July 2026. A public exploit is known to exist, which raises the urgency of patching considerably. A vendor advisory or fix has been published. Record sourced from NVD.

References

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Details

Severity MEDIUM
CVSS Score 5.0
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N
CWE CWE-862
Public Exploit ⚠️ Yes
Source NVD
Published 2026-07-10
Updated 2026-08-11
Modified 2026-07-13

Affected Packages

Software From version Fixed in
rabbitmq-server 3.13.0 4.2.6

Similar Threats

Exploit Protection

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