{"id":"CVE-2026-109354","title":"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","summary":"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 …","severity":"medium","cvss":4.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","cwe":["CWE-22"],"published":"2026-10-12","updated":"2026-10-12","sourceUpdated":"2026-10-12T17:17:32.573","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-109354","references":[{"url":"https://github.com/librenms/librenms/security/advisories/GHSA-j3qf-h24w-9f42","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/librenms-before-26.9.0-path-traversal-via-nfsen-channel-parameter","label":"disclosure@vulncheck.com"}],"tags":["nvd"],"ingestedAt":"2026-10-12T18:00:08.212Z","slug":"CVE-2026-109354","body":"## Overview\n\nLibreNMS 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":24,"depthScoreParts":{"impact":23.7,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}