Ni8mare Vulnerability Let Attackers Hijack n8n Servers – Exploit Released With 26,512 Vulnerable Hosts

A critical unauthenticated remote code execution vulnerability discovered in n8n, the popular workflow automation platform, exposes an estimated 100,000 servers globally to complete takeover. Tracked as CVE-2026-21858 with a maximum CVSS score of 10.0, the flaw allows unauthenticated attackers to execute arbitrary system commands and achieve full host compromise without triggering any alarms. The vulnerability […]

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