n8n before 1.123.64, 2.x before 2.29.8, and before 2.30.1 contains a DOM-based cross-site scripting vulnerability in the HTML preview, which renders execution output into an iframe srcdoc without the sandbox attribute. A sanitizer bypass allows injected script to execute same-origin as the editor. When a victim opens the preview, the script can call authenticated APIs using the victim's session. An account with global:member privileges can exploit the issue.
References
| Link | Resource |
|---|---|
| https://github.com/n8n-io/n8n/security/advisories/GHSA-p3rg-hrf9-w9gj | Mitigation Vendor Advisory |
| https://www.vulncheck.com/advisories/n8n-before-dom-based-xss-via-unsandboxed-iframe | Third Party Advisory |
Configurations
Configuration 1 (hide)
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History
27 Jul 2026, 19:15
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://github.com/n8n-io/n8n/security/advisories/GHSA-p3rg-hrf9-w9gj - Mitigation, Vendor Advisory | |
| References | () https://www.vulncheck.com/advisories/n8n-before-dom-based-xss-via-unsandboxed-iframe - Third Party Advisory | |
| CPE | cpe:2.3:a:n8n:n8n:*:*:*:*:enterprise:node.js:*:* cpe:2.3:a:n8n:n8n:2.30.0:*:*:*:enterprise:node.js:*:* cpe:2.3:a:n8n:n8n:*:*:*:*:community:node.js:*:* cpe:2.3:a:n8n:n8n:2.30.0:*:*:*:community:node.js:*:* |
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| First Time |
N8n
N8n n8n |
|
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 5.4 |
22 Jul 2026, 12:18
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-07-22 12:18
Updated : 2026-07-27 19:15
NVD link : CVE-2026-65597
Mitre link : CVE-2026-65597
CVE.ORG link : CVE-2026-65597
JSON object : View
Products Affected
n8n
- n8n
CWE
CWE-79
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')