CVE-2026-109356

Medium

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.

SeverityMedium

CVSS4.3

Exploit probability—

ProductLibrenms

PublishedOct 12, 2026

First seenOct 12, 2026

Weakness typeCWE-862Missing authorization

How to fix

Update

librenms librenms26.9.0 or later

Vendor advisories

github.com/librenms/librenms/security/advisories/GHSA-9qcg-rgg9-mpjg

Affected products

Product	Affected versions	Fixed in
librenms librenms	v < 26.9.0	26.9.0

Check your version

Choose the product and enter the version you run to see whether it falls in the affected range.

In the Intelligence 360 plan

Attack Surface Management

See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.