CVE-2026-33456

MEDIUM

Potential livestatus injection in notification test

Title source: CVE List
STIX 2.1 vulnerability

Record summary

CVE-2026-33456 has a selected CVSS score of 5.1 (medium).

Description

Livestatus injection in the notification test mode in Checkmk <2.5.0b4 and <2.4.0p26 allows an authenticated user with access to the notification test page to inject arbitrary Livestatus commands via a crafted service description.

Description source: CVE List

Exploitation context

CISA SSVC decision

ExploitationNone
AutomatableNo
Technical impactTotal

CISA Coordinator · SSVC 2.0.3 · Evaluated Apr 14, 2026 · Source: CVE List

Affected products and versions

1
ProductSourceVersion range

Checkmk

Browse Checkmk GmbH / Checkmk

Default status: unaffected

CVE List2.5.0 to < 2.5.0b4affected
2.4.0 to < 2.4.0p26affected

References

2