PT-2026-63355 · N8N Io · N8N

Odgrso · CVE-2026-65597 · Published 2026-07-22 · Updated 2026-07-22

Mitre

CVSS v4.0

8.2

High

Base vector

AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:L/VA:N/SC:H/SI:L/SA:N

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.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2026-65597

Affected Products

N8N

References · 3

• https://github.com/n8n-io/n8n/security/advisories/GHSA-p3rg-hrf9-w9gj · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-65597 · Security Note
• https://vulncheck.com/advisories/n8n-before-dom-based-xss-via-unsandboxed-iframe · Note