cvedb.io
CVE-2026-26989
MEDIUM · CVSS 4.3
EPSS exploitation probability: 0%
Published 2026-02-20T02:16:54.710 · Last modified 2026-06-17T10:26:29.817

Summary

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.

Affected products

librenms — librenms

Does this affect you?

Add your gear to cvedb and we'll alert you only when librenms ships something exploited.

Check my exposure →

References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.