RabbitMQ 3.13.x < 3.13.15 / 4.0.x < 4.0.21 / 4.1.x < 4.1.11 / 4.2.x < 4.2.6 Topic Authorization Bypass

medium Nessus Plugin ID 327584

Synopsis

The RabbitMQ installed on the remote host is affected by a vulnerability.

Description

The version of RabbitMQ installed on the remote host is affected by an authorization bypass vulnerability:

- RabbitMQ topic authorization can allow restricted topic writes and binds during metadata-store failures because topic-permission lookup errors from Khepri can collapse to undefined, which the internal backend treats as allow.
(CVE-2026-57217)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Upgrade to RabbitMQ version 3.13.15, 4.0.21, 4.1.11, 4.2.6, or later.

Plugin Details

Severity: Medium

ID: 327584

File Name: rabbitmq_topic_auth_4_0_21.nasl

Version: 1.1

Type: Local

Agent: windows, macosx, unix

Family: Misc.

Published: 7/17/2026

Updated: 7/17/2026

Configuration: Enable paranoid mode, Enable thorough checks (optional)

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.8

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Vector: CVSS2#AV:N/AC:L/Au:S/C:C/I:N/A:N

CVSS Score Source: CVE-2026-57217

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Vulnerability Information

CPE: cpe:/a:vmware:rabbitmq, cpe:/a:pivotal_software:rabbitmq

Required KB Items: installed_sw/RabbitMQ, Settings/ParanoidReport

Patch Publication Date: 7/10/2026

Vulnerability Publication Date: 7/10/2026

Reference Information

CVE: CVE-2026-57217

Detections

Analytics