PT-2026-86793 · Git+1 · Librenms
CVE-2026-86427
·
Published
2026-09-07
·
Updated
2026-09-07
CVSS v3.1
8.8
High
| Vector | AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
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.
Exploit
Fix
Command Injection
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Weakness Enumeration
Related Identifiers
Affected Products
Librenms