{"id":"CVE-2026-118648","aliases":[],"cve":{"records":[{"id":"CVE-2026-118648","source":"VulnCheck","state":"PUBLISHED","reasons":[],"replacements":[],"disputed":false,"unsupportedWhenAssigned":false,"reserved":"2026-10-28T17:24:54.847Z","published":"2026-10-28T18:59:46.959Z","modified":"2026-10-28T18:59:46.959Z"}],"publishers":[{"name":"VulnCheck","role":"CNA","organizationId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","modified":"2026-10-28T18:59:46.959Z"}],"references":[{"url":"https://github.com/n8n-io/n8n/security/advisories/GHSA-mp7q-23hg-35cf","tags":["vendor-advisory"],"source":"VulnCheck"},{"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"],"source":"VulnCheck"}],"weaknesses":[{"id":"CWE-79","description":"Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","source":"VulnCheck"}],"applicability":[{"source":"VulnCheck","statements":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:n8n:n8n:*:*:*:*:*:*:*:*","versionEndExcluding":"1.123.85"}]}]},{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:n8n:n8n:*:*:*:*:*:*:*:*","versionStartIncluding":"2.44.0","versionEndExcluding":"2.44.1"}]}]},{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:n8n:n8n:*:*:*:*:*:*:*:*","versionStartIncluding":"2.0.0","versionEndExcluding":"2.43.5"}]}]}]}],"prioritization":[]},"title":"n8n before 1.123.85, 2.43.5, and 2.44.1 Stored XSS via Webhook Responses Missing Sandbox Policy","titleSource":"VulnCheck","descriptionSource":"VulnCheck","description":"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URL.","score":8.4,"severity":"high","published":"2026-10-28T18:59:46.959Z","modified":"2026-10-28T18:59:46.959Z","withdrawn":false,"knownExploited":false,"affected":[],"products":[{"vendor":"n8n-io","name":"n8n","platforms":[],"versions":[{"version":"0","status":"affected","lessThan":"1.123.85","versionType":"semver"},{"version":"1.123.85","status":"unaffected","versionType":"semver"}],"defaultStatus":"unaffected","packageURL":"pkg:npm/n8n","packageIdentity":{"ecosystem":"npm","name":"n8n"},"cpes":[],"source":"VulnCheck","url":"https://www.cve.org/CVERecord?id=CVE-2026-118648"},{"vendor":"n8n-io","name":"n8n","platforms":[],"versions":[{"version":"2.44.0","status":"affected","lessThan":"2.44.1","versionType":"semver"},{"version":"2.44.1","status":"unaffected","versionType":"semver"}],"defaultStatus":"unaffected","packageURL":"pkg:npm/n8n","packageIdentity":{"ecosystem":"npm","name":"n8n"},"cpes":[],"source":"VulnCheck","url":"https://www.cve.org/CVERecord?id=CVE-2026-118648"},{"vendor":"n8n-io","name":"n8n","platforms":[],"versions":[{"version":"2.0.0","status":"affected","lessThan":"2.43.5","versionType":"semver"},{"version":"2.43.5","status":"unaffected","versionType":"semver"}],"defaultStatus":"unaffected","packageURL":"pkg:npm/n8n","packageIdentity":{"ecosystem":"npm","name":"n8n"},"cpes":[],"source":"VulnCheck","url":"https://www.cve.org/CVERecord?id=CVE-2026-118648"}],"remediation":[],"references":["https://github.com/n8n-io/n8n/security/advisories/GHSA-mp7q-23hg-35cf","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"],"sources":[{"name":"CVE","id":"CVE-2026-118648","modified":"2026-10-28T18:59:46.959Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-118648"}],"assessments":[{"source":"VulnCheck","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:N/SC:L/SI:L/SA:N","score":8.4},{"source":"VulnCheck","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N","score":7.3}],"sourceAffected":[],"observedAt":"2026-10-29T14:37:33.080Z","kev":{"status":"not-listed","checkedAt":"2026-10-31T11:30:32.033Z"},"coverage":[{"source":"NVD","status":"not-checked"},{"source":"GHSA","status":"not-checked"},{"source":"EUVD","status":"not-checked"},{"source":"EPSS","status":"not-checked"}],"evidence":[],"aiSummary":{"text":"n8n versions before 1.123.85, 2.x before 2.43.5, and 2.44.x before 2.44.1 have a stored cross-site scripting vulnerability. Authenticated members can serve HTML that runs on the n8n origin. This allows scripts to act with the session of users who open the webhook URL.","model":"@cf/meta/llama-3.3-70b-instruct-fp8-fast","generatedAt":"2026-10-30T09:54:39.503Z","sources":[{"name":"CVE","url":"https://www.cve.org/CVERecord?id=CVE-2026-118648"}]}}