SEPTEMBER 14, 2026
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Case File

CVE-2026-86426

CRITICAL · CVSS 9.2 EPSS 1.41% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-09-07 · Last synced 2026-09-14

CyberRota Analysis

AI-Generated

LibreNMS versions prior to 26.8.0 are vulnerable to an authentication bypass in the REST API, allowing unauthenticated attackers to exploit MySQL type coercion by sending numeric values to access protected endpoints. This vulnerability can lead to unauthorized access to sensitive API functionality, including device credentials and administrative features, potentially enabling remote code execution through alert templates. Organizations using affected versions should prioritize immediate updates to mitigate this critical security risk.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Detected Signals
exploit remote code execution code execution
GitHub PoC Links

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-86426
Severity
CRITICAL
CVSS
9.2
EPSS
1.41%

Original NVD Description

LibreNMS before 26.8.0 contains an authentication bypass vulnerability in the REST API that allows unauthenticated attackers to access protected endpoints by sending numeric values instead of string tokens. Attackers can exploit MySQL type coercion by sending small integers like 0 through 9 to match token hashes, gaining access to API functionality including device credentials and administrative features that enable remote code execution through alert templates.