Security Advisory

CVE-2026-56356

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2026-06-30 22:08:35

Last updated 2026-07-01 13:24:34

Assigner VulnCheck

CVSS score 5.1

State PUBLISHED

Description

n8n contains a stored cross-site scripting vulnerability in the Chat Trigger node's Custom CSS field due to a misconfiguration of the sanitize-html library. Affected releases are those before 1.123.27, the 2.0.0 through 2.13.2 line, and 2.14.0 (fixed in 1.123.27, 2.13.3, and 2.14.1). An authenticated user with permission to create or modify workflows can inject JavaScript that bypasses sanitization, resulting in stored XSS against any user who visits the public chat page.

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