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 authent
CVSS
6.8
Medium
EPSS
0.5%
p37
KEV
—
Exploit Today
11
0-100
Published: Jul 10, 2026 · Last modified: Jul 13, 2026 · CWE-287
0.3%EPSS · 30 days0.5%
2026-07-112026-07-17
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.
- github.comhttps://github.com/rabbitmq/rabbitmq-server/commit/7273c9eb6920abcde17b892dbe97ccaf906ead47
- github.comhttps://github.com/rabbitmq/rabbitmq-server/commit/9f8c39fcf0acbc43080ee7017a62a02832114112
- github.comhttps://github.com/rabbitmq/rabbitmq-server/pull/15936
- github.comhttps://github.com/rabbitmq/rabbitmq-server/pull/15940
- github.comhttps://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.2.6
- github.comhttps://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-36m6-588r-vqcw
- github.comhttps://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-36m6-588r-vqcw
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