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Vulnerability record · CVE-2026-57218 · published 10 July 2026

CVE-2026-57218: Broadcom rabbitmq server incorrect authorization vulnerability

Broadcom · Rabbitmq Server

RabbitMQ is a messaging and streaming broker. Prior to 4.2.6, 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. This issue is fixed in version 4.2.6.

4.9 CVSS 4.0 Medium EPSS 0.35% · top 73.7% CWE-863 · Incorrect authorization
4.9CVSS 4.0 base score
0.35%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
7References, 2 tagged exploit
13 Jul 2026Last modified by NVD

Description

RabbitMQ is a messaging and streaming broker. Prior to 4.2.6, 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. This issue is fixed in version 4.2.6.

CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/rabbitmq/rabbitmq-server/commit/501ad947cd6bbcc9486fe96e0d073992bfe52cc4 Patch
https://github.com/rabbitmq/rabbitmq-server/commit/db20d6c0fcf3056030f244b5adab0d45c0db0c9e Patch
https://github.com/rabbitmq/rabbitmq-server/pull/16092 Issue TrackingPatch
https://github.com/rabbitmq/rabbitmq-server/pull/16097 Issue TrackingPatch
https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.2.6 Release Notes
https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-wmrr-4h5v-5ch7 ExploitVendor Advisory
https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-wmrr-4h5v-5ch7 ExploitVendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-57218), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.