| Component | n8n |
| Severity | medium (CVSS 4.1) |
| CVSS vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:L/A:N |
| Published (NVD) | 2026-07-10 |
| Last modified | 2026-07-13 |
| Affected versions | n8n < 1.123.24 n8n < 1.123.24 n8n >= 2.0.0, < 2.10.4 n8n >= 2.10.0, < 2.10.4 n8n >= 2.11.0, < 2.12.0 n8n >= 2.11.0, < 2.12.0 |
| Fixed in | 1.123.24, 2.10.4, 2.12.0 |
| Weakness | CWE-79 |
| CISA KEV | not listed |
NVD 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.
What to do
- Upgrade n8n to
1.123.24or later (or the patched release of your branch: 2.10.4, 2.12.0). - Do not expose the component's API or UI to the internet without authentication in front of it.
Sources
- NVD: CVE-2026-56354
- https://github.com/n8n-io/n8n/security/advisories/GHSA-w673-8fjw-457c
- https://www.vulncheck.com/advisories/n8n-cross-site-scripting-and-open-redirect-in-form-node
Read more
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