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CVE-2026-2859

MEDIUM CVSS: 4.3 Published: 2026-03-13 Modified: 2026-06-17

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 Platforms

Checkmk Checkmk

Weakness Type

CWE-204

References