Improper Encoding or Escaping of Output Affecting librenms/librenms package, versions >=24.10.0, <26.2.0
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
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-15323704
- published20 Feb 2026
- disclosed18 Feb 2026
- creditdecsecre583
Introduced: 18 Feb 2026
NewCVE-2026-27016 (opens in a new tab)How to fix?
Upgrade librenms/librenms to version 26.2.0 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 Improper Encoding or Escaping of Output via the unit parameter in the Custom OID process. An attacker can execute arbitrary JavaScript code in the context of users viewing affected device graphs by submitting specially crafted input that is stored in the database and rendered without proper sanitization.