Open redirect in n8n - #VU128724
Published: April 30, 2026
Vulnerability identifier: #VU128724
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: N/A
CWE-ID: CWE-601
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: n8n
Affected software:
n8n
n8n
Detailed vulnerability description
The vulnerability allows a remote user to redirect end users to an arbitrary external URL.
The vulnerability exists due to an overly permissive iframe sandbox policy in the Form Node when rendering form content. A remote user can configure a crafted form to redirect end users to an arbitrary external URL.
User interaction is required when an end user visits the form.
Remediation
Install security update from vendor's website.