Livestatus Injection Vulnerability in Checkmk by Tribe29
CVE-2026-33457

5.3MEDIUM

Key Information:

Vendor

Checkmk Gmbh

Status
Checkmk
Vendor
CVE Published:
10 April 2026

What is CVE-2026-33457?

The Checkmk product from Tribe29 has a vulnerability that allows authenticated users to inject arbitrary Livestatus commands via a crafted service name parameter on the prediction graph page. This occurs due to a failure to properly sanitize the service description value, thereby opening a potential attack vector for user exploitation.

Affected Version(s)

Checkmk 2.5.0 < 2.5.0b4

Checkmk 2.4.0 < 2.4.0p26

Checkmk 2.3.0 < 2.3.0p47

References

https://checkmk.com/werk/17990
vendor-advisory

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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