{"schema":"threatline.record/2","record":{"id":"CVE-2026-118648","aliases":["GHSA-mp7q-23hg-35cf"],"summary":"n8n before 1.123.85, 2.43.5, and 2.44.1 Stored XSS via Webhook Responses Missing Sandbox Policy","details":"n8n before 1.123.85, 2.x before 2.43.5, and 2.44.x before 2.44.1 contains a stored cross-site scripting vulnerability because some webhook response paths, such as error responses and responses without headers, omit the sandbox Content-Security-Policy. Authenticated members who can create and activate workflows can serve HTML that runs on the n8n origin, letting scripts act with the session of users who open the webhook URL.","categories":["Frameworks"],"product":"n8n","vendor":"n8n-io","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-118648","source_modified_at":"2026-10-28T18:59:46.959Z","fetched_at":"2026-10-28T20:58:01.013507Z","product":"n8n","vendor":"n8n-io","versions":[{"version":"0","status":"affected","versionType":"semver","lessThan":"1.123.85"},{"version":"1.123.85","status":"unaffected","versionType":"semver"}],"defaultStatus":"unaffected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-118648","source_modified_at":"2026-10-28T18:59:46.959Z","fetched_at":"2026-10-28T20:58:01.013507Z","product":"n8n","vendor":"n8n-io","versions":[{"version":"2.44.0","status":"affected","versionType":"semver","lessThan":"2.44.1"},{"version":"2.44.1","status":"unaffected","versionType":"semver"}],"defaultStatus":"unaffected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-118648","source_modified_at":"2026-10-28T18:59:46.959Z","fetched_at":"2026-10-28T20:58:01.013507Z","product":"n8n","vendor":"n8n-io","versions":[{"version":"2.0.0","status":"affected","versionType":"semver","lessThan":"2.43.5"},{"version":"2.43.5","status":"unaffected","versionType":"semver"}],"defaultStatus":"unaffected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-118648","source_modified_at":"2026-10-28T18:59:46.959Z","fetched_at":"2026-10-28T20:58:01.013507Z","package":{"name":"n8n","ecosystem":null},"version":"1.123.85","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-118648","source_modified_at":"2026-10-28T18:59:46.959Z","fetched_at":"2026-10-28T20:58:01.013507Z","package":{"name":"n8n","ecosystem":null},"version":"2.44.1","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-118648","source_modified_at":"2026-10-28T18:59:46.959Z","fetched_at":"2026-10-28T20:58:01.013507Z","package":{"name":"n8n","ecosystem":null},"version":"2.43.5","basis":"first unaffected version stated in the CVE record"}],"cvss":8.4,"severity":"High","kev":{"listed":false},"epss":{"probability":null,"percentile":null,"score_date":null},"published_at":"2026-10-28T18:59:46.959Z","modified_at":"2026-10-28T18:59:46.959Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-118648","fetched_at":"2026-10-28T20:58:01.013507Z","source_modified_at":"2026-10-28T18:59:46.959Z"}],"sources":["CVE List"],"references":[{"source":"CVE List","url":"https://github.com/n8n-io/n8n/security/advisories/GHSA-mp7q-23hg-35cf","tags":["vendor-advisory"]},{"source":"CVE List","url":"https://www.vulncheck.com/advisories/n8n-before-1.123.85-2.43.5-and-2.44.1-stored-xss-via-webhook-responses-missing-sandbox-policy","tags":["third-party-advisory"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"product","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-10-28T18:59:46.959Z","content_hash":"5cd2d6e987fa356cc789a3cf9fb525fc2398d3db6be596d8bd281df92409f3dd"}}