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CVE PROGRAM SOURCE RECORD5.8 Medium

CVE-2026-84193

LibreNMS through 26.2.0 Stored Cross-Site Scripting via SNMP

Description

LibreNMS through 26.2.0 contains a stored cross-site scripting vulnerability in legacy PHP template pages that render unescaped SNMP-sourced data fields including BGP peer descriptions, VRF names, process information, and SLA tags. Attackers with device management access or network access to enroll a rogue SNMP device can inject malicious JavaScript that executes when admins view affected routing and device pages, enabling credential theft and CSRF token exfiltration.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

librenms librenms

Default version status: unaffected

  • 0 to ≤ 26.2.0affected

References