CVE-2026-109355

MEDIUM CVSS 4.0: 5.3 EPSS 0.19%
Updated Oct 16, 2026
Librenms
Parameter Value
CVSS 5.3 (MEDIUM)
Affected Versions before 26.9.0
Fixed In 26.9.0
Type CWE-79 (Cross-Site Scripting (XSS))
Vendor Librenms
Public PoC No

LibreNMS before 26.9.0 contains a stored cross-site scripting vulnerability in get_oxidized_nodes_list() that renders Oxidized API fields and SNMP sysName unescaped. Attackers controlling the Oxidized response or a device's SNMP sysName can inject script that executes in browsers of users viewing the Tools Oxidized page.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
None
No privileges needed
User Interaction
Passive
Minimal interaction

Impact Assessment

Confidentiality
None
No data leak
Integrity
None
No data modification
Availability
None
No disruption

CVSS Vector v4.0

Vulnerable Products 1

Configuration From (including) Up to (excluding)
Librenms Librenms
cpe:2.3:a:librenms:librenms:*:*:*:*:*:*:*:*
— 26.9.0