Exploit for Improper Input Validation in N8N CVE-2025-68613 CVE-2026-20805 CVE-2026-21858 CVE-2026-24291 CVE-2

What happened

Unauthenticated RCE in n8n via file read and expression injection sandbox bypass.

Affected versions

Windows 10 Version 1809: 10.0.17763.0 through before 10.0.17763.9245 (custom); 10.0.19044.0 through before 10.0.19044.7725 (custom); 10.0.19045.0 through before 10.0.19045.7725 (custom); 10.0.22631.0 through before 10.0.22631.7582 (custom); 10.0.26100.0 through before 10.0.26100.9445 (custom); 10.0.26200.0 through before 10.0.26200.9445 (custom); 10.0.28000.0 through before 10.0.28000.2954 (custom); 10.0.20348.0 through before 10.0.20348.5622 (custom); 10.0.26100.0 through before 10.0.26100.33438 (custom) Fixed: See vendor advisory.

Why it matters

This source correlation may provide earlier visibility while structured CVE metadata is still being updated.

Detection & mitigation

• Review the original advisory and validate affected versions.
• Apply vendor-provided updates or mitigations when available.