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CVE-2026-65597

n8n before 1.123.64 DOM-Based XSS via Unsandboxed iframe PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
n8n-io / n8naffected 0 before 1.123.64; unaffected 1.123.64
n8n-io / n8naffected 0 before 2.30.1; unaffected 2.30.1
n8n-io / n8naffected 0 before 2.29.8; unaffected 2.29.8

CWE

CWE-79

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.