CVE-2026-17548: CWE-862: Missing Authorization in Checkmk GmbH Checkmk
Description
CVE-2026-17548 is a medium severity vulnerability in Checkmk versions prior to certain patch releases that allows an authenticated user with knowledge of a background job ID to view the status and results of that job due to missing authorization checks.
CVSS v4.0
Score 5.3medium
Affected software
Checkmk GmbH
Checkmk
pkg:github/checkmk/checkmkRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CWE-862) affects Checkmk versions <2.5.0p12, <2.4.0p36, <2.3.0p50, and all 2.2.0 versions. It involves missing authorization controls that permit an authenticated user who knows the ID of a background job to access that job's status and results without proper permission checks. The CVSS 4.0 base score is 5.3, indicating a medium impact with network attack vector, low complexity, and no user interaction required.
Potential Impact
An authenticated user with limited privileges can view the status and results of background jobs they should not have access to. This could lead to unauthorized disclosure of information related to system operations or monitoring tasks. There is no indication of privilege escalation or remote code execution.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Users should verify with Checkmk GmbH for official patches or updates addressing this missing authorization issue. Until patched, restrict authenticated user access and avoid sharing job IDs with unauthorized users.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Checkmk
- Date Reserved
- 2026-07-27T11:46:09.650Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6a8d57daacd9273b49ee4d27
Added to database: 08/25/2026, 08:52:42 UTC
Last enriched: 09/10/2026, 20:18:11 UTC
Last updated: 10/07/2026, 18:48:17 UTC
Views: 62
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