Description

LibreNMS is an auto-discovering PHP/MySQL/SNMP based network monitoring tool. Versions 25.12.0 and below are affected by a Stored Cross-Site Scripting (XSS) vulnerability in the Alert Rules workflow. An attacker with administrative privileges can inject malicious scripts that execute in the browser context of any user who accesses the Alert Rules page. This issue has been fixed in version 26.2.0.

INFO

Published Date :

2026-02-20T01:25:31.936Z

Last Modified :

2026-02-20T01:25:31.936Z

Source :

GitHub_M
AFFECTED PRODUCTS

The following products are affected by CVE-2026-26989 vulnerability.

No data.

REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-26989.

URL Resource
https://github.com/librenms/librenms/commit/087608cf9f851189847cb8e8e5ad002e59170c58 cve-icon cve-icon
https://github.com/librenms/librenms/pull/19039 cve-icon cve-icon
https://github.com/librenms/librenms/releases/tag/26.2.0 cve-icon cve-icon
https://github.com/librenms/librenms/security/advisories/GHSA-6xmx-xr9p-58p7 cve-icon cve-icon
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CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact