Skip to main content
VulnerabilityPublished Updated

CVE-2026-57216: Rabbitmq server · RabbitMQ is a messaging and streaming broker

Affects rabbitmq-serverSource GCVE Database

0
Compare
Authoritative record:CVE-2026-57216· Medium 6.8

Not known to be exploited · CVSS 6.8 Medium.

Data as of 30 Oct 2026, 11:52 UTC

CVSS 3.1 base score
6.8Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.5% chance of exploitation in 30 days – higher than 43% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 10 Jul 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
Ubuntu 26.10rabbitmq-serverpkg:deb/ubuntu/rabbitmq-server?arch=source&distro=stonkingOther threatsAffected
  • =4.0.5-10ubuntu5
  • =4.3.2-4ubuntu2
  • =4.3.2-4ubuntu3
Fixed in–
Ubuntu 26.04 LTSrabbitmq-serverpkg:deb/ubuntu/rabbitmq-server?arch=source&distro=resoluteOther threatsAffected
  • 4.0.5-8ubuntu2 – 4.0.5-10ubuntu5.2
8 affected builds
Fixed in–
Ubuntu 24.04 LTSrabbitmq-serverpkg:deb/ubuntu/rabbitmq-server?arch=source&distro=nobleOther threatsAffected
  • 3.12.1-1 – 3.12.1-1ubuntu1.7
6 affected builds
Fixed in–
Ubuntu 22.04 LTSrabbitmq-serverpkg:deb/ubuntu/rabbitmq-server?arch=source&distro=jammyOther threatsAffected
  • 3.8.9-3ubuntu1 – 3.9.27-0ubuntu0.6
13 affected builds
Fixed in–
Ubuntu 20.04 LTSrabbitmq-serverpkg:deb/ubuntu/rabbitmq-server@3.8.3-0ubuntu0.3?arch=source&distro=focalOther threatsAffected
  • 3.7.8-4ubuntu2 – 3.8.3-0ubuntu0.3
11 affected builds
Fixed in–
Ubuntu Pro 20.04 LTSrabbitmq-serverpkg:deb/ubuntu/rabbitmq-server?arch=source&distro=esm-infra/focalOther threatsAffected
  • 3.7.8-4ubuntu2 – 3.8.3-0ubuntu0.3+esm2
13 affected builds
Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Upgrade RabbitMQ to version 3.13.15, 4.0.20, 4.1.11, or 4.2.6 or later, where this vulnerability is fixed. No other mitigation or workaround is indicated. Patch status is confirmed by the vendor advisory.

Description

RabbitMQ versions prior to 3.13.15, 4.0.20, 4.1.11, and 4.2.6 contain a vulnerability in the AMQP 0-9-1, AMQP 1.0, and Stream Protocol authentication mechanisms. This flaw allows a loopback-restricted user such as 'guest' to connect remotely if traffic is accepted through a trusted PROXY-protocol path and the backend listener is bound to loopback. The issue is due to the loopback check using the listener-side socket address instead of the actual client source address. Fixed versions include 3.13.15, 4.0.20, 4.1.11, and 4.2.6.

References

Community reviews

Loading reviews…