CVE-2022-48321 SSRF in agent-receiver API
An attacker can exploit SSRF in the host registration API to access restricted local network endpoints in Checkmk.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2022-48321?
CVE-2022-48321 is a medium-severity server-side request forgery vulnerability in Checkmk Checkmk, published on 20 Feb 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Limited Server-Side Request Forgery (SSRF) in agent-receiver in Tribe29's Checkmk <= 2.1.0p11 allows an attacker to communicate with local network restricted endpoints by use of the host registration API.
Which versions are affected by CVE-2022-48321?
It affects 1 product.
Products include Checkmk Checkmk.
How do I fix CVE-2022-48321?
No fix has been published for CVE-2022-48321 yet. Limit exposure of the affected software until one is available.
Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.
Is CVE-2022-48321 being exploited?
There is no known exploitation of CVE-2022-48321 in the wild and no public exploit code.
Other vulnerabilities in Checkmk Checkmk
- CVE-2025-39666 omd: Local privilege escalation when executing omd commands as root
- CVE-2024-8606 Fix 2FA bypass via RestAPI
- CVE-2022-46836 PHP code injection in watolib
- CVE-2025-32919 Privilege Escalation in Windows License plugin for Checkmk Windows Agent
- CVE-2024-28827 Privilege escalation in Windows agent
Sources
Also known as GHSA-q57f-4wj6-3jfc, UBUNTU-CVE-2022-48321.