CVE-2026-57216

RabbitMQ is a messaging and streaming broker. Prior to 3.13.15, 4.0.20, 4.1.11, and 4.2.6, AMQP 0-9-1, AMQP 1.0, and Stream Protocol authentication can allow a loopback-restricted user such as guest to connect remotely when traffic is accepted through a trusted PROXY-protocol path and the backend listener is loopback-bound because the loopback check uses the listener-side socket address instead of the real client source. This issue is fixed in versions 3.13.15, 4.0.20, 4.1.11, and 4.2.6.
Configurations

Configuration 1 (hide)

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

History

13 Jul 2026, 21:09

Type Values Removed Values Added
CPE cpe:2.3:a:broadcom:rabbitmq_server:*:*:*:*:*:*:*:*
First Time Broadcom
Broadcom rabbitmq Server
References () https://github.com/rabbitmq/rabbitmq-server/commit/7273c9eb6920abcde17b892dbe97ccaf906ead47 - () https://github.com/rabbitmq/rabbitmq-server/commit/7273c9eb6920abcde17b892dbe97ccaf906ead47 - Patch
References () https://github.com/rabbitmq/rabbitmq-server/commit/9f8c39fcf0acbc43080ee7017a62a02832114112 - () https://github.com/rabbitmq/rabbitmq-server/commit/9f8c39fcf0acbc43080ee7017a62a02832114112 - Patch
References () https://github.com/rabbitmq/rabbitmq-server/pull/15936 - () https://github.com/rabbitmq/rabbitmq-server/pull/15936 - Issue Tracking, Patch
References () https://github.com/rabbitmq/rabbitmq-server/pull/15940 - () https://github.com/rabbitmq/rabbitmq-server/pull/15940 - Issue Tracking, Patch
References () https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.2.6 - () https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.2.6 - Release Notes
References () https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-36m6-588r-vqcw - () https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-36m6-588r-vqcw - Exploit, Vendor Advisory

13 Jul 2026, 15:16

Type Values Removed Values Added
References () https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-36m6-588r-vqcw - () https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-36m6-588r-vqcw -

10 Jul 2026, 21:16

Type Values Removed Values Added
New CVE

Information

Published : 2026-07-10 21:16

Updated : 2026-07-13 21:09


NVD link : CVE-2026-57216

Mitre link : CVE-2026-57216

CVE.ORG link : CVE-2026-57216


JSON object : View

Products Affected

broadcom

  • rabbitmq_server
CWE
CWE-287

Improper Authentication