CVE-2026-109354CWE-22path-traversal

CVE-2026-109354

Medium · published October 12, 2026

CVSS v3.1
4.3
EPSS
0%
Percentile
18.9
In the wild
Unconfirmed
What it is

LibreNMS before 26.9.0 contains a path traversal vulnerability in nfsen_channel_common.inc.php that allows authenticated users to read unauthorized RRD data by injecting ../ sequences into the channel parameter. Attackers with access to one NFSen-enabled device can request graph.php with a traversed channel value to view traffic and NetFlow graphs of devices outside their authorized scope.

The record
Technical detail
CVSS v3.1
4.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
CVSS v4.0
5.3 · CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
EPSS
0.00275 · 18.9th percentile
Weakness
CWE-22 · Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Published
2026-10-12T21:17Z
References (2)
https://github.com/librenms/librenms/security/advisories/GHSA-j3qf-h24w-9f42 · [email protected]https://www.vulncheck.com/advisories/librenms-before-26.9.0-path-traversal-via-nfsen-channel-parameter · [email protected]
EPSS history
Timeline
  • 14 OCT 03:27Z
    EPSS moved — → 0%
    epss
  • 12 OCT 16:05Z
    LibreNMS before 26.9.0 Path Traversal via NFSen channel Parameter
    cvelistv5
  • 12 OCT 16:05Z
    LibreNMS before 26.9.0 Path Traversal via NFSen channel Parameter
    cvelistv5