CVE-2026-65597
CVE-2026-65597
8.2
HighPublished:
Last updated:
Source:disclosure@vulncheck.com
Analyzed
Weakness (CWE)
CVSS Vector
v4.0- Attack Vector
- Network
- Attack Complexity
- Low
- Attack Requirements
- None
- Privileges Required
- Low
- User Interaction
- Active
- Confidentiality (Vulnerable)
- High
- Integrity (Vulnerable)
- Low
- Availability (Vulnerable)
- None
- Confidentiality (Subsequent)
- High
- Integrity (Subsequent)
- Low
- Availability (Subsequent)
- None
Description
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
disclosure@vulncheck.com
https://github.com/n8n-io/n8n/security/advisories/GHSA-p3rg-hrf9-w9gjdisclosure@vulncheck.com
https://www.vulncheck.com/advisories/n8n-before-dom-based-xss-via-unsandboxed-iframe