CVE-2026-56354: n8n - Cross-Site Scripting and Open Redirect in Form Node
Medium · CVSS 4.1 (CVSS 3.1)EPSS 0.24%, 15th percentilePublished Updated Assigner: VulnCheck
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.
Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:L/A:N · CWE-79
Tracked companies
Mapped from the CVE’s affected-product data, NVD CPE matches, vendor advisories or package feeds. A mapping means the vendor’s software is named, not that its hosted service was exposed.
Status incidents that name it
No tracked status incident names this CVE.
Affected vendors and products
n8n: n8n
References
- CVE record on cve.org (opens in new tab)
- NVD entry (opens in new tab)
- github.com/n8n-io/n8n/security/advisories/GHSA-w673-8fjw-457c (opens in new tab)
- www.vulncheck.com/advisories/n8n-cross-site-scripting-and-open-redirect-in-form-node (opens in new tab)
- CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (opens in new tab)
- This product uses data from the NVD API but is not endorsed or certified by the NVD. (opens in new tab)
- Known Exploited Vulnerabilities catalog from CISA. (opens in new tab)
- EPSS scores from FIRST (Exploit Prediction Scoring System). (opens in new tab)