Vulnerability DatabaseCVE-2026-24097
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CVE-2026-24097
March 13, 2026
Improper permission enforcement in Checkmk versions 2.4.0 before 2.4.0p23, 2.3.0 before 2.3.0p43, and 2.2.0 (EOL) allows authenticated users to enumerate existing hosts by observing different HTTP response codes in agent-receiver/register_existing endpoint, which could lead to information disclosure.
Affected Packages
https://github.com/Checkmk/checkmk.git (GITHUB):
Affected version(s) >=v2.4.0p2 <v2.4.0p22-rc1
Fix Suggestion:
Update to version v2.4.0p22-rc1
https://github.com/Checkmk/checkmk.git (GITHUB):
Affected version(s) >=v2.3.0b1 <v2.3.0p43
Fix Suggestion:
Update to version v2.3.0p43
Related Resources (1)
https://checkmk.com/werk/18993
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CVSS v4
Base Score:
5.3
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
NONE
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
4.3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE
Weakness Type (CWE)
Observable Response Discrepancy
CWE-204
EPSS
Base Score:
0.03