Authorization Bypass Vulnerability in Checkmk by Tribe29
CVE-2026-17548

5.3MEDIUM

Key Information:

Vendor

Checkmk Gmbh

Status
Checkmk
Vendor
CVE Published:
25 August 2026

What is CVE-2026-17548?

The vulnerability in Checkmk versions prior to 2.5.0p12, 2.4.0p36, and 2.3.0p50, as well as all 2.2.0 versions, stems from inadequate authorization mechanisms. This flaw allows authenticated users to view the status and results of background jobs if they are aware of the job IDs, potentially exposing sensitive operational data and compromising the integrity of the system.

Affected Version(s)

Checkmk 2.5.0 < 2.5.0p12

Checkmk 2.4.0 < 2.4.0p36

Checkmk 2.3.0 < 2.3.0p50

References

https://checkmk.com/werk/22115
vendor-advisory

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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