Skip to content
Fencer Vulns
high 7.5

CVE-2021-22116 json

RabbitMQ all versions prior to 3.8.16 are prone to a denial of service vulnerability due to improper input validation in AMQP 1.0 client co…

published 2021-06-08 5 y ago modified 2026-09-08 2 mo ago also BIT-rabbitmq-2021-22116 , EUVD-2021-9274

cvss
7.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.4%
EPSS 1.4% chance of exploitation in 30 days, percentile 72%
public exploits
0
none known

Summary

RabbitMQ all versions prior to 3.8.16 are prone to a denial of service vulnerability due to improper input validation in AMQP 1.0 client connection endpoint. A malicious user can exploit the vulnerability by sending malicious AMQP messages to the target RabbitMQ instance having the AMQP 1.0 plugin enabled.

Patch / fix

  • bitnami rabbitmq 3.8.16
  • vmware rabbitmq 3.8.16
  • rabbitmq-server Debian 14, Debian 13, Debian 12 3.9.4-1

debian advisories DEBIAN-CVE-2021-22116

  • rabbitmq-server Ubuntu 18.04 LTS 3.6.10-1ubuntu0.5
  • rabbitmq-server Ubuntu 20.04 LTS 3.8.2-0ubuntu1.3
  • rabbitmq-server Ubuntu 22.04 LTS 3.8.9-3ubuntu1
  • rabbitmq-server Ubuntu Pro 16.04 LTS 3.5.7-1ubuntu0.16.04.4+esm1

ubuntu advisories UBUNTU-CVE-2021-22116

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • elixir115 SLE Module for Server Applications 15 SP6, openSUSE Leap 15.6 1.15.7-150300.7.5.1
  • erlang26 SLE Module for Server Applications 15 SP6, openSUSE Leap 15.6 26.2.1-150300.7.5.1
  • rabbitmq-server313 SLE Module for Server Applications 15 SP6, openSUSE Leap 15.6 3.13.1-150600.13.5.3
  • rabbitmq-server SLE Module for Server Applications 15 SP3 3.8.11-3.3.3
  • rabbitmq-server SLE Module for Server Applications 15 SP2 3.8.3-3.3.4

suse advisories SUSE-FU-2024:2078-1SUSE-SU-2021:3325-1SUSE-SU-2021:3254-1

  • rabbitmq-server openSUSE Leap 15.3 3.8.11-3.3.3
  • rabbitmq-server openSUSE Leap 15.2 3.8.3-lp152.2.3.1

opensuse advisories openSUSE-SU-2021:3325-1openSUSE-SU-2021:1334-1

  • rabbitmq Arch Linux 3.8.16-1

arch linux advisories AVG-1966

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2021-22116 updated cvss 5.9

rabbitmq-server: improper input validation may lead to DoS

  • Red Hat OpenStack Platform 10 (Newton) rabbitmq-server Red Hat OpenStack Platform 13 (Queens) rabbitmq-server
    affected: no fix planned “Out of support scope”
  • Red Hat OpenStack Platform 16 (Train) rabbitmq-server
    affected: no fix planned “Will not fix”
  • Red Hat Ansible Tower 3 rabbitmq-server
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

1.39% chance of exploitation in the next 30 days, higher than 72% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:N/A:P
OSV 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected packages

ecosystem package affected fixed in
bitnami rabbitmq
<3.8.16
3.8.16

Affected products

  • n/a RabbitMQ

Classification

Weakness
  • CWE-400 Uncontrolled Resource Consumption
  • CWE-20 Improper Input Validation

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.