CVE-2026-57216 | BDVDB-2026-346986 Detail
rabbitmqrabbitmq-server
Description#
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.
Impact#
Per CVSS v3.1: confidentiality impact high, integrity impact none, availability impact none. Attack vector: network.
Weaknesses#
- CWE-287 Improper Authentication
References#
- https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-36m6-588r-vqcw
- https://github.com/rabbitmq/rabbitmq-server/pull/15936
- https://github.com/rabbitmq/rabbitmq-server/pull/15940
- https://github.com/rabbitmq/rabbitmq-server/commit/7273c9eb6920abcde17b892dbe97ccaf906ead47
- https://github.com/rabbitmq/rabbitmq-server/commit/9f8c39fcf0acbc43080ee7017a62a02832114112
- https://github.com/rabbitmq/rabbitmq-server/releases/tag/v4.2.6
Exploit#
No public exploit known
History#
- Version 1Record published in the CVE List.
- Version 2Most recent update recorded in the CVE List.