6.0Media
CVE-2026-67411RabbitMQ: Web MQTT with PROXY Protocol enabled: a loopback-only user permission bypass
Descripción
RabbitMQ is a messaging and streaming broker. From 3.13.0 until 3.13.18, 4.0.23, 4.1.14, 4.2.9, and 4.3.3, native MQTT and MQTT over WebSocket behind a trusted PROXY Protocol frontend could lose the proxy-derived client address before the MQTT authentication path checked loopback_users, causing the frontend-to-broker address to be treated as loopback. An attacker who can reach the trusted frontend and has valid credentials for a loopback-restricted account can therefore bypass the source-address restriction; the issue does not bypass password authentication. This issue is fixed in versions 3.13.18, 4.0.23, 4.1.14, 4.2.9, and 4.3.3.
Debilidad (CWE):
CWE-863
Datos: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Se publican tal como los indican las fuentes, en inglés.
Productos y versiones afectados
| Fabricante | Producto | Versiones | |
|---|---|---|---|
| broadcom | rabbitmq server | 3.13.0 – < 3.13.18 | |
| rabbitmq | rabbitmq-server | >= 4.3.0, < 4.3.3, >= 4.2.0, < 4.2.9, >= 4.1.0, < 4.1.14, >= 4.0.0, < 4.0.23, >= 3.13.0, < 3.13.18 |
Referencias y parches
- https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-4r6f-9cpw-f6g6 ExploitVendor Advisory
- https://github.com/rabbitmq/rabbitmq-server/commit/a7528314840c4f8dc9904684f9f97ffa7aac6349 Patch
- https://github.com/rabbitmq/rabbitmq-server/commit/edbead0eabbd65925d0dc914a22d6a29e155e646 Patch
- https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.2.9 Release Notes
- https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.3.3 Release Notes
Coincidencias CPE (NVD) (5)
cpe:2.3:a:broadcom:rabbitmq_server:*:*:*:*:*:*:*:*≥ 3.13.0 < 3.13.18cpe:2.3:a:broadcom:rabbitmq_server:*:*:*:*:*:*:*:*≥ 4.0.0 < 4.0.23cpe:2.3:a:broadcom:rabbitmq_server:*:*:*:*:*:*:*:*≥ 4.1.0 < 4.1.14cpe:2.3:a:broadcom:rabbitmq_server:*:*:*:*:*:*:*:*≥ 4.2.0 < 4.2.9cpe:2.3:a:broadcom:rabbitmq_server:*:*:*:*:*:*:*:*≥ 4.3.0 < 4.3.3