CVE-2026-24097
Authenticated Host Enumeration via Observable Response Discrepancy on Agent Register Existing Endpoint
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-204 |
| Vendor | checkmk gmbh |
| Product | checkmk |
| Published | Mar 13, 2026 |
| Last Updated | Mar 13, 2026 |
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Affected Versions
Checkmk GmbH / Checkmk
2.4.0 < 2.4.0p23 2.3.0 < 2.3.0p43 2.2.0