CVE-2026-8593

Medium

Description

Improper permission enforcement in Checkmk versions 2.5.0 before 2.5.0p9, 2.4.0 before 2.4.0p34, 2.3.0 before 2.3.0p49, and 2.2.0 (EOL) allows users without permissions to view and modify BI packs and rules

SeverityMedium
CVSS5.3
Exploit probability—
ProductCheckmk
PublishedJul 21, 2026
First seenJul 21, 2026

How to fix

Update
  • Checkmk GmbH Checkmk2.5.0p9, 2.4.0p34, 2.3.0p49 or later
Vendor advisories

Affected products

ProductAffected versionsFixed in
Checkmk GmbH Checkmk2.5.0 ≤ v < 2.5.0p9, 2.4.0 ≤ v < 2.4.0p34, 2.3.0 ≤ v < 2.3.0p492.5.0p9, 2.4.0p34, 2.3.0p49

Check your version

Choose the product and enter the version you run to see whether it falls in the affected range.

In the Intelligence 360 plan

Attack Surface Management

See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.