CVE-2021-22117 Privilege escalation in RabbitMQ
Local attackers can escalate privileges and execute code by adding arbitrary plugins due to insecure permissions in the RabbitMQ Windows installer.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2021-22117?
CVE-2021-22117 is a high-severity vulnerability in Broadcom Rabbitmq Server, published on 18 May 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
RabbitMQ installers on Windows prior to version 3.8.16 do not harden plugin directory permissions, potentially allowing attackers with sufficient local filesystem permissions to add arbitrary plugins.
Which versions are affected by CVE-2021-22117?
1 open source package ship an affected version, including rabbitmq. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
rabbitmq Bitnami | From 3.8.0 | 3.8.16 |
Products include Broadcom Rabbitmq Server.
How do I fix CVE-2021-22117?
Upgrade rabbitmq to 3.8.16 or later.
Is CVE-2021-22117 being exploited?
There is no known exploitation of CVE-2021-22117 in the wild and no public exploit code.
Other vulnerabilities in Broadcom Rabbitmq Server
- CVE-2016-9877 Auth bypass in Pivotal RabbitMQ 3.x before 3.5.8 and 3.6.x before 3.6.6; RabbitMQ for PCF 1.5.x before 1.5.20, 1.6.x before 1.6.12 and 1.7.x before 1.7.7
- CVE-2026-67404 RabbitMQ: OAuth2 silent verify_none fallback for JWKS fetch
- CVE-2026-67231 RabbitMQ: Trust-store whitelist by Issuer+Serial only
- CVE-2026-57219 Information disclosure in rabbitmq-server
- CVE-2026-67236 RabbitMQ: Plaintext username:password stored in an insecure cookie after successful POST /login
Sources
Also known as BIT-rabbitmq-2021-22117, GHSA-rwr9-36p6-24vw.