This page tracks the Debian fix status. The vulnerability itself is described on the main CVE page.
View CVE-2026-57216 →
DEBIAN-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 ca...
Original description
The description as published by the source.
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.
Source: OSV.dev (Open Source Vulnerabilities) OSV
Affected packages
Debian:12
rabbitmq-server
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Debian:13
rabbitmq-server
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Debian:14
rabbitmq-server
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.3.0-2"}]}]
References
- advisory security-tracker.debian.org