Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| N8N | N8N | < 1.123.24 |
Related Weaknesses (CWE)
References
- https://github.com/n8n-io/n8n/security/advisories/GHSA-w673-8fjw-457cMitigationVendor Advisory
- https://www.vulncheck.com/advisories/n8n-cross-site-scripting-and-open-redirect-Third Party Advisory
FAQ
What is CVE-2026-56354?
CVE-2026-56354 is a vulnerability with a CVSS score of 4.1 (MEDIUM). 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 an...
How severe is CVE-2026-56354?
CVE-2026-56354 has been rated MEDIUM with a CVSS base score of 4.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-56354?
Check the references section above for vendor advisories and patch information. Affected products include: N8N N8N.