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.
- Affected products
- Rabbitmq
- Broadcom Rabbitmq Server
- < 4.2.6
- Fix
- Available
- CVSS 3.1
- 10.0 CRITICAL
- EPSS
- 0.9% (57th percentile)
- Weakness
- CWE-287
- NVD status
- Analyzed
- Published
- 2026-07-10
CVE-2026-57216 at NVD
No indexed exploits for CVE-2026-57216 yet
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No exploit for CVE-2026-57216 has been indexed yet. Our index is built from live traffic and upstream syncs, so this page can only say what it knows — not that no exploit exists.