Improper Authentication Affecting librenms/librenms package, versions <26.8.0
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-20158841
- published27 Sept 2026
- disclosed7 Sept 2026
- creditUnknown
Introduced: 7 Sep 2026
NewCVE-2026-86426 (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 Improper Authentication in the REST API process. An attacker can gain unauthorized access to protected endpoints by sending numeric values instead of string tokens, exploiting MySQL type coercion to match token hashes. This allows access to sensitive API functionality, including device credentials and administrative features, potentially enabling remote code execution through alert templates.