Security Advisory

CVE-2026-26989

CVE vulnerability detail — eXtreme Datacenter Security Operations

Published 2026-02-20 01:25:31

Last updated 2026-02-20 15:34:55

Assigner GitHub_M

State PUBLISHED

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.

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