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OFFICIAL CVE RECORD5.1 Medium

CVE-2026-56354

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

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Status
Published
Published
Updated
Assigning organization
VulnCheck

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 products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

n8n n8n

Default version status: unaffected

  • 0 to < 1.123.24affected
  • 1.123.24unaffected
  • 2.0.0-rc.0 to < 2.10.4affected
  • 2.10.4unaffected
  • 2.11.0 to < 2.12.0affected
  • 2.12.0unaffected
pkg:npm/n8n

n8n n8n

Default version status: unaffected

  • 2.0.0-rc.0 to < 2.10.4affected
  • 2.10.4unaffected
pkg:npm/n8n

n8n n8n

Default version status: unaffected

  • 0 to < 1.123.24affected
  • 1.123.24unaffected
pkg:npm/n8n

References