Cloudanix VulnDB

CVE-2026-77072

High · 7.6

CVSS

7.6

EPSS

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Published

Aug 20, 2026

CISA due date

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The record

n8n before 1.123.69, 2.33.4, and 2.34.1 contains a stored cross-site scripting vulnerability in the Form node's completion page. The completion page applied its sandboxing Content-Security-Policy only when respondWith was not set to 'redirect', but responseText was always rendered as raw HTML. An authenticated member could set respondWith to 'redirect' via an expression while keeping responseText populated, causing the completion page to serve unsanitized HTML and script from the n8n origin. Any visitor who submitted the resulting public form would have that script execute same-origin with their session.

Affected packages

Ecosystem Package Introduced Fixed

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