Vulnerability · Published Jul 10, 2026 · Assigned by VulnCheck

CVE-2026-56354n8n - Cross-Site Scripting and Open Redirect in Form Node

Medium 4.1

In plain English

A medium-severity cross-site scripting in n8n from n8n. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 15% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)4.1Medium

Exploit odds (30 days)0.2%top 85.0% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
npm	n8n	2.12.0	GHSA-w673-8fjw-457c
npm	n8n	2.10.4	GHSA-w673-8fjw-457c
npm	n8n	1.123.24	GHSA-w673-8fjw-457c

Affected products (as reported)

Vendor	Product	Versions
n8n	n8n	0 – before 1.123.242.0.0-rc.0 – before 2.10.42.11.0 – before 2.12.0
n8n	n8n	2.0.0-rc.0 – before 2.10.4
n8n	n8n	0 – before 1.123.24

Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:L/A:N

References

GitHub Security Advisory (GHSA-w673-8fjw-457c) vendor-advisory
VulnCheck Advisory: n8n - Cross-Site Scripting and Open Redirect in Form Node third-party-advisory