CVE-2021-32718: RabbitMQ is a multi-protocol messaging broker

Q: How do I fix CVE-2021-32718?

rabbitmq: upgrade to 3.8.17. Exact commands for each OS are on this page.

Q: Is CVE-2021-32718 being exploited?

CVE-2021-32718 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2021-32718 affect?

CVE-2021-32718 affects rabbitmq. Severity is low (CVSS 3.1). RabbitMQ is a multi-protocol messaging broker. In rabbitmq-server prior to version 3.8.17, a new user being added via management UI could lead to the user's bane being rendered in a confirmation message without proper ` ` tag sanitiz

Routine

LOW 3.1UPGRADE

CVE-2021-32718 is a low-severity flaw (CVSS 3.1) affecting rabbitmq. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

RabbitMQ is a multi-protocol messaging broker. In rabbitmq-server prior to version 3.8.17, a new user being added via management UI could lead to the user's bane being rendered in a confirmation message without proper `<script>` tag sanitization, potentially allowing for JavaScript code execution in the context of the page. In order for this to occur, the user must be signed in and have elevated permissions (other user management). The vulnerabil

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	3.1 (Low)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	High
User interaction	Required
EPSS exploit chance	1.4% (top 27%)
CISA exploited list	No
Weakness	CWE-80, CWE-79
Published	2021-06-28
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: vmware

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2021-06-28 15:15 UTCPublished CVE record published
2026-06-17 03:53 UTCUpdated Record last modified

vmware rabbitmq UPGRADE

Affected: < 3.8.17

Fixed in: 3.8.17

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy rabbitmq || rpm -q rabbitmq || rabbitmq --version

2. UPGRADE to 3.8.17 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade rabbitmq

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade rabbitmq

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2021-32718?

rabbitmq: upgrade to 3.8.17. Exact commands for each OS are on this page.

Is CVE-2021-32718 being exploited?

CVE-2021-32718 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2021-32718 affect?

CVE-2021-32718 affects rabbitmq. Severity is low (CVSS 3.1). RabbitMQ is a multi-protocol messaging broker. In rabbitmq-server prior to version 3.8.17, a new user being added via management UI could lead to the user's bane being rendered in a confirmation message without proper `<script>` tag sanitiz

How urgent is CVE-2021-32718?

Priority 34/100. Public exploit reference

Software pages

VMware vulnerabilities · RabbitMQ vulnerabilities

Related CVEs

CVE-2023-46118 MEDIUM 4.9 UPGRADE RabbitMQ is a multi-protocol messaging and streaming broker
CVE-2022-31008 MEDIUM 5.5 UPGRADE UPGRADE RabbitMQ is a multi-protocol messaging and streaming broker
CVE-2021-32719 LOW 3.1 UPGRADE RabbitMQ is a multi-protocol messaging broker
CVE-2021-22116 HIGH 7.5 UPGRADE MITIGATE RabbitMQ all versions prior to 3.8.16 are prone to a denial of service vulnerability due to improper input val
CVE-2020-5419 MEDIUM 6.7 UPGRADE UPGRADE RabbitMQ versions 3.8.x prior to 3.8.7 are prone to a Windows-specific binary planting security vulnerability

References

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