CRITICAL: Security Vulnerabilities in n8n

n8n has critical security vulnerabilities that are being actively exploited. CVE-2026-21858 has a CVSS score of 10.0 (maximum severity) and both vulnerabilities are listed in the CISA KEV catalog. Approximately 24,700 exposed instances have been identified. If you are running n8n, update to the latest version, restrict network access, and review your authentication settings immediately. The information below describes n8n's features, but security must be your first priority before deploying or continuing to use the platform.