RabbitMQ 4.2.x < 4.2.6 OAuth Token Expiry Consumer Bypass

medium Nessus Plugin ID 327576

Synopsis

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

Description

The version of RabbitMQ installed on the remote host is 4.2.x prior to 4.2.6. It is, therefore, affected by an authorization bypass vulnerability:

- RabbitMQ AMQP 0-9-1 allows an existing consumer to keep receiving messages after OAuth token expiry or connection.update_secret refresh to reduced scopes because existing consumers are not canceled or reauthorized at delivery time after the channel user state changes. (CVE-2026-57218)

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 4.2.6 or later.

Plugin Details

Severity: Medium

ID: 327576

File Name: rabbitmq_oauth_consumer_4_2_6.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-2026-57218

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-2026-57218

Detections

Analytics