Description
n8n before 1.123.24, 2.10.4, and 2.12.0 (across its 1.x and 2.x branches) contains cross-site scripting and open redirect vulnerabilities in the Form Node due to unsanitized HTML description fields and overly permissive iframe sandbox policies. Authenticated users with workflow creation permissions can inject malicious scripts or redirect parameters to perform stored XSS attacks or phishing redirects against end users.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| n8n | n8n | < 1.123.24, 2.0.0-rc.0 – < 2.10.4, 2.11.0 – < 2.12.0, 2.0.0-rc.0 – < 2.10.4, < 1.123.24 | 1.123.24 |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| npm | n8n | >= 2.11.0, < 2.12.0 | 2.12.0 | GHSA-w673-8fjw-457c |
| npm | n8n | >= 2.0.0-rc.0, < 2.10.4 | 2.10.4 | GHSA-w673-8fjw-457c |
| npm | n8n | < 1.123.24 | 1.123.24 | GHSA-w673-8fjw-457c |
Advisories 1
- WID-SEC-2026-0877 n8n: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jul 12, 2026
References
- GitHub Security Advisory (GHSA-w673-8fjw-457c) vendor-advisory
- VulnCheck Advisory: n8n - Cross-Site Scripting and Open Redirect in Form Node third-party-advisory