CVE-2026-33457 Potential livestatus injection in prediction graph page
An authenticated attacker can inject arbitrary Livestatus commands via a crafted service name in Checkmk, potentially leading to code execution.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-33457?
CVE-2026-33457 is a medium-severity command injection vulnerability in Checkmk Checkmk, published on 10 Apr 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Livestatus injection in the prediction graph page in Checkmk <2.5.0b4, <2.4.0p26, and <2.3.0p47 allows an authenticated user to inject arbitrary Livestatus commands via a crafted service name parameter due to insufficient sanitization of the service description value.
Weakness: CWE-140
Which versions are affected by CVE-2026-33457?
It affects 1 product.
Products include Checkmk Checkmk.
How do I fix CVE-2026-33457?
No fix has been published for CVE-2026-33457 yet. Limit exposure of the affected software until one is available.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2026-33457 being exploited?
There is no known exploitation of CVE-2026-33457 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-8gxr-c98h-cwxm, UBUNTU-CVE-2026-33457.