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Products as named in CPE, with their records.

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Release: Checkmk 2.3.0p43, 2.4.0p23 Clear all filters
TI-2026-02455 CVE-2026-2859 · GHSA-xxw2-9c45-r2hr

Unauthenticated Host Enumeration via Observable Response Discrepancy on Deploy Agent Endpoint

Priority LOW 33

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 dep…

CVSS 4.0MEDIUM 6.3 Network No auth No interaction EPSS 0.00221 Published 2026-03-13 Fixed in 2.4.0p23, 2.3.0p43 CWE-204
TI-2026-19421 CVE-2026-24097 · GHSA-34x2-m38g-824f

Authenticated Host Enumeration via Observable Response Discrepancy on Agent Register Existing Endpoint

Priority LOW 30

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…

CVSS 4.0MEDIUM 5.3 Network Low privileges No interaction EPSS 0.00276 Published 2026-03-13 Fixed in 2.4.0p23, 2.3.0p43 CWE-204