CVE-2026-56354
MEDIUMn8n - Cross-Site Scripting and Open Redirect in Form Node
Title source: cnaDescription
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.
References (2)
Core 2
Core References
Vendor Advisory vendor-advisory
GitHub Security Advisory (GHSA-w673-8fjw-457c)
https://github.com/n8n-io/n8n/security/advisories/GHSA-w673-8fjw-457c
Third Party Advisory third-party-advisory
VulnCheck Advisory: 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
Scores
CVSS v3
4.1
EPSS
0.0017
EPSS Percentile
6.6%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:L/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-79
Status
published
Products (7)
n8n/n8n
< 1.123.24 (3 CPE variants)
n8n/n8n
< 2.10.4
n8n/n8n
1.123.24
n8n/n8n
2.0.0-rc.0 - 2.10.4
n8n/n8n
2.10.4
n8n/n8n
2.11.0 - 2.12.0
n8n/n8n
2.12.0
Published
Jul 10, 2026
Tracked Since
Jul 10, 2026