CVE-2026-26987 MEDIUM

CVE-2026-26987: LibreNMS affected by reflected XSS via email field

Vendor Librenms
Product librenms
Weakness CWE-79 · XSS
Published February 20, 2026
Last update February 20, 2026
View on NVD All CVEs

CVSS base score

5.3/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction —
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

February 20, 2026 CVE published
February 20, 2026 Record updated