CVE-2026-56354CWE-79

n8n - Cross-Site Scripting and Open Redirect in Form Node

Medium · published July 10, 2026

CVSS v4.0
5.1
EPSS
0%
Percentile
14.1
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
5.1 · MEDIUM
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
EPSS
0.00238 · 14.1th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-07-10T13:57Z
EPSS history
Timeline
  • 10 JUL 13:57Z
    n8n - Cross-Site Scripting and Open Redirect in Form Node
    cvelistv5