CVE-2026-65597 — n8n before 1.123.64 DOM-Based XSS via Unsandboxed iframe
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 ifr…
Published: 2026-07-22 · CVSS: 8.2 · CVSS 4.0
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7