CVE-2026-33456 MEDIUM

CVE-2026-33456: Potential livestatus injection in notification test

Vendor Checkmk Gmbh
Product Checkmk
Weakness CWE-140
Published April 10, 2026
Last update April 14, 2026
View on NVD All CVEs

CVSS base score

5.1/10
Attack vector Network
Attack complexity Low
Privileges required High
User interaction None
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

April 10, 2026 CVE published
April 14, 2026 Record updated