Security Advisory

CVE-2026-2859

CVE vulnerability detail — eXtreme Datacenter Security Operations

Published 2026-03-13 09:40:43

Last updated 2026-03-13 15:48:18

Assigner Checkmk

State PUBLISHED

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.

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