Technology ❯ Cybersecurity ❯ Threats ❯ Remote Code Execution

CVE-2026-21858 Exploit

Critical 'Ni8mare' Flaw Exposes n8n Servers to Full Takeover as Scans Surge

A content-type parsing bug lets unauthenticated requests read local files and escalate to remote code execution, prompting urgent upgrades to November 2025 fixes.