CVE-2026-26989 LibreNMS has Stored XSS in Alert Rule

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...

CVE-2026-26987

CVE-2026-26987 affects LibreNMS up to version 25.12.0 with a Reflected XSS vulnerability in the email field of alerting settings. The issue is fixed in version 26.2.0. Multiple sources (NVD, Red Hat, OSV, GHSA) corroborate that user-input in the email field can be reflected, potentially allowing ...