Medium 4.3Published Oct 12, 2026

CVE-2026-109356LibreNMS before 26.9.0 Missing Authorization in Port Purge via PortsController

Updated under an hour ago (2026-10-19 07:30 UTC)

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It affects librenms. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

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.

CVSS: 4.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Weakness (CWE): CWE-862
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulnCheck
NVD analysis: Awaiting Analysis
Record last updated: Oct 12, 2026
First seen by InfoSec Signals: Oct 12, 2026

Affected products

Affected products

librenms librenms librenms:librenms (from the name)	before 26.9.0; 26.9.0 not affected	CNA record

References

https://github.com/librenms/librenms/security/advisories/GHSA-9qcg-rgg9-mpjgvendor-advisory
https://www.vulncheck.com/advisories/librenms-before-26.9.0-missing-authorization-in-port-purge-via-portscontrollerthird-party-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.