# CVE-2025-58121: Insufficient permission validation on multiple REST API endpoints in Checkmk 2.2.0, 2.3.0, and 2.4.0 before version…

Source: https://junglewise.ai/threats/cve-2025-58121-insufficient-permission-validation-on-multiple-rest-api-endpoints  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2025-11-18  
License: CC BY 4.0 with a link back

CVE-2025-58121 · Severity: medium · CVSS 5.4 · Published 2025-11-18

Insufficient permission validation on multiple REST API endpoints in Checkmk 2.2.0, 2.3.0, and 2.4.0 before version 2.4.0p16 allows low-privileged users to perform unauthorized actions or obtain sensitive information

Technologies: [Checkmk](https://junglewise.ai/threats/technologies/checkmk). Vendors: [Checkmk](https://junglewise.ai/threats/vendors/checkmk).

## Quick answers

**Is CVE-2025-58121 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2025-58121 being exploited in the wild.

**How severe is CVE-2025-58121?** Medium severity, with a CVSS score of 5.4, published 18 November 2025.

**Which products and versions are affected?** Checkmk. The advisory does not name versions.

**Is there a fix for CVE-2025-58121?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**Am I affected by CVE-2025-58121?** Check whether you run Checkmk. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Affected products

- Checkmk

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