CVE-2026-56354

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 v3 4.1 MEDIUM

4.1^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.3 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://github.com/n8n-io/n8n/security/advisories/GHSA-w673-8fjw-457c	Mitigation Vendor Advisory
https://www.vulncheck.com/advisories/n8n-cross-site-scripting-and-open-redirect-in-form-node	Third Party Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:n8n:n8n:::::community:node.js::
	cpe:2.3:a:n8n:n8n:::::enterprise:node.js::
	cpe:2.3:a:n8n:n8n:::::enterprise:node.js::
	cpe:2.3:a:n8n:n8n:::::community:node.js::
	cpe:2.3:a:n8n:n8n:::::community:node.js::
	cpe:2.3:a:n8n:n8n:::::enterprise:node.js::

History

13 Jul 2026, 16:54

Type	Values Removed	Values Added
First Time		N8n N8n n8n
References	~~() https://github.com/n8n-io/n8n/security/advisories/GHSA-w673-8fjw-457c -~~	() https://github.com/n8n-io/n8n/security/advisories/GHSA-w673-8fjw-457c - Mitigation, Vendor Advisory
References	~~() https://www.vulncheck.com/advisories/n8n-cross-site-scripting-and-open-redirect-in-form-node -~~	() https://www.vulncheck.com/advisories/n8n-cross-site-scripting-and-open-redirect-in-form-node - Third Party Advisory
CPE		cpe:2.3:a:n8n:n8n:::::enterprise:node.js:: cpe:2.3:a:n8n:n8n:::::community:node.js::

10 Jul 2026, 15:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-07-10 15:16

Updated : 2026-07-13 16:54

NVD link : CVE-2026-56354

Mitre link : CVE-2026-56354

CVE.ORG link : CVE-2026-56354

JSON object : View

Products Affected

n8n

n8n

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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