Vulnerability DatabaseCVE-2026-33456
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CVE-2026-33456
Published:April 10, 2026
Updated:April 20, 2026
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.
Affected Packages
https://github.com/Checkmk/checkmk.git (GITHUB):
Affected version(s) >=v1.1.0 <v2.5.0b4
Fix Suggestion:
Update to version v2.5.0b4
https://github.com/Checkmk/checkmk.git (GITHUB):
Affected version(s) >=v2.4.0 <v2.4.0p26
Fix Suggestion:
Update to version v2.4.0p26
Related Resources (1)
https://checkmk.com/werk/17989
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CVSS v4
Base Score:
5.1
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
HIGH
User Interaction
NONE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
LOW
Vulnerable System Availability
LOW
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
4.7
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
LOW
Availability
LOW
Weakness Type (CWE)
Improper Neutralization of Delimiters
CWE-140
EPSS
Base Score:
0.05