Arbitrary Command Injection Affecting librenms/librenms package, versions <26.8.0
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learning- Snyk IDSNYK-PHP-LIBRENMSLIBRENMS-20158840
- published27 Sept 2026
- disclosed7 Sept 2026
- creditUnknown
Introduced: 7 Sep 2026
NewCVE-2026-86427 (opens in a new tab)How to fix?
Upgrade librenms/librenms to version 26.8.0 or higher.
Overview
librenms/librenms is a fully featured network monitoring system that provides a wealth of features and device support.
Affected versions of this package are vulnerable to Arbitrary Command Injection via the graph_title parameter. An attacker can inject arbitrary arguments into the rrdtool command by breaking out of double-quote escaping, which may allow reading unauthorized RRD files or executing arbitrary rrdtool commands by injecting DEF and LINE arguments or newlines. This can result in bypassing per-device authorization checks and accessing sensitive data or executing unauthorized actions.