| Name | CVE-2026-57216 |
| 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. |
| Source | CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| rabbitmq-server (PTS) | bullseye (security), bullseye | 3.8.9-3+deb11u1 | vulnerable |
| bookworm, bookworm (security) | 3.10.8-1.1+deb12u1 | vulnerable | |
| trixie | 4.0.5-6+deb13u2 | vulnerable | |
| forky, sid | 4.3.2-4 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| rabbitmq-server | source | (unstable) | 4.3.0-2 |
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/9f8c39fcf0acbc43080ee7017a62a02832114112 (main)
https://github.com/rabbitmq/rabbitmq-server/commit/7273c9eb6920abcde17b892dbe97ccaf906ead47 (v4.2.6)