{"id":"EUVD-2026-40444","revision":"dd54a760f4b8487d9b0a43ba8087f0e6","records":[{"revision":"dd54a760f4b8487d9b0a43ba8087f0e6","observedAt":"2026-11-01T10:14:19.053+00:00","statement":{"source":"euvd","id":"EUVD-2026-40444","aliases":["CVE-2026-56356","GHSA-99wx-hwrx-8g4w"],"title":"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 2.1…","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.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N","score":5.1,"severity":null}],"references":["https://github.com/n8n-io/n8n/security/advisories/GHSA-3c7f-5hgj-h279","https://www.vulncheck.com/advisories/n8n-stored-cross-site-scripting-in-chat-trigger-node-custom-css-field"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-40444","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Jun 30, 2026, 10:08:35 PM","dateUpdated":"Oct 29, 2026, 9:15:46 PM"},"relatedAdvisories":[],"note":"EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON."},"key":"euvd:EUVD-2026-40444","identifiers":["EUVD-2026-40444","CVE-2026-56356","GHSA-99wx-hwrx-8g4w"]},"retained":false,"historicalAffected":[]}],"coverage":[]}