CVE-2026-26987

6.1 MEDIUM

Published: February 20, 2026 Modified: February 20, 2026

Description

LibreNMS is an auto-discovering PHP/MySQL/SNMP based network monitoring tool. Versions 25.12.0 and below are vulnerable to Reflected XSS attacks via email field. This issue has been fixed in version 26.2.0.

AI Explanation

Get an AI-powered plain-language explanation of this vulnerability and remediation steps.

CVSS v3.x Details

0.0 Low Medium High Critical 10.0

Vector String

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory

https://github.com/librenms/librenms/commit/8e626b38ef92e240532cdac2ac7e38706a71208b

Source: security-advisories@github.com

Patch

https://github.com/librenms/librenms/pull/19038

Source: security-advisories@github.com

Issue Tracking

https://github.com/librenms/librenms/releases/tag/26.2.0

Source: security-advisories@github.com

Product Release Notes

https://github.com/librenms/librenms/security/advisories/GHSA-gqx7-99jw-6fpr

Source: security-advisories@github.com

Exploit Third Party Advisory

4 reference(s) from NVD

Quick Stats

CVSS v3 Score

6.1 / 10.0

EPSS (Exploit Probability)

0.0%

0th percentile

Exploitation Status

Not in CISA KEV

Weaknesses (CWE)

CWE-79

Affected Vendors

librenms

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