Vulnerability · Published Oct 12, 2026 · Assigned by VulnCheck
CVE-2026-109356LibreNMS before 26.9.0 Missing Authorization in Port Purge via PortsController
Medium 4.3
In plain English
A medium-severity missing authorization in librenms from librenms. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 9% of all known vulnerabilities).
Severity (CVSS 3.1)4.3Medium
Exploit odds (30 days)0.2%top 91.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
LibreNMS before 26.9.0 contains a missing authorization vulnerability in PortsController::purge that allows global-read users to physically delete ports without delete privileges. Attackers with read-only accounts can send DELETE requests to /ports/purge, using purge=all to irreversibly erase every deleted port on all visible devices.
Affected products (as reported)
Weakness: CWE-862 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
References
- GitHub Security Advisory (GHSA-9qcg-rgg9-mpjg) vendor-advisory
- VulnCheck Advisory: LibreNMS before 26.9.0 Missing Authorization in Port Purge via PortsController third-party-advisory