What is GHSA-j7jc-m6xg-rrcw?

GHSA-j7jc-m6xg-rrcw is a security advisory published by GitHub Security Advisories with High severity. LibreNMS before 26.8.0 contains an argument injection vulnerability in the graph_title parameter...

Which CVE IDs does GHSA-j7jc-m6xg-rrcw cover?

GHSA-j7jc-m6xg-rrcw covers the following CVE IDs: CVE-2026-86427. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-j7jc-m6xg-rrcw?

GHSA-j7jc-m6xg-rrcw has a CVSS v3 base score of 8.8, published by GitHub Security Advisories.

GHSA-j7jc-m6xg-rrcwHighCVSS 8.8

LibreNMS before 26.8.0 contains an argument injection vulnerability in the graph_title parameter...

Vendor

GitHub Security Advisories

Published

September 7, 2026

Last Modified

September 7, 2026

🔗 CVE IDs covered (1)

CVE-2026-86427 →

📋 Description

LibreNMS before 26.8.0 contains an argument injection vulnerability in the graph_title parameter that allows authenticated attackers to inject arbitrary rrdtool arguments by breaking out of double-quote escaping. Attackers can inject DEF and LINE arguments to read RRD files from unauthorized devices, or use newline injection to execute arbitrary rrdtool commands, bypassing per-device authorization checks.

🔗 References (4)

https://github.com/librenms/librenms/security/advisories/GHSA-3hvv-wxpw-cx83
https://nvd.nist.gov/vuln/detail/CVE-2026-86427
https://www.vulncheck.com/advisories/librenms-before-26.8.0-argument-injection-via-graph-title
https://github.com/advisories/GHSA-j7jc-m6xg-rrcw