{"id":"CVE-2026-109354","published":"2026-10-12T17:17:32.573","lastModified":"2026-10-15T20:33:06.527","description":"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.","cvssScore":4.3,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","cwes":["CWE-22"],"vendors":[],"products":[],"references":[{"url":"https://github.com/librenms/librenms/security/advisories/GHSA-j3qf-h24w-9f42","tags":[]},{"url":"https://www.vulncheck.com/advisories/librenms-before-26.9.0-path-traversal-via-nfsen-channel-parameter","tags":[]}],"exploitRefs":[{"url":"https://github.com/librenms/librenms/security/advisories/GHSA-j3qf-h24w-9f42","tags":[]}],"hasPoc":true,"ai":null}