Unrated severityNVD Advisory· Published Mar 13, 2026· Updated Mar 13, 2026
Unauthenticated Host Enumeration via Observable Response Discrepancy on Deploy Agent Endpoint
CVE-2026-2859
Description
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 unauthenticated users to enumerate existing hosts by observing different HTTP response codes in deploy_agent endpoint, which could lead to information disclosure.
Affected products
1Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
1News mentions
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