{"affected":[{"defaultStatus":"unaffected","ecosystem":"npm","packageName":"n8n","product":"n8n","source":"CNA: VulnCheck","vendor":"n8n-io","versions":[{"lessThan":"1.123.85","status":"affected","version":"0","versionType":"semver"},{"status":"unaffected","version":"1.123.85","versionType":"semver"}]},{"defaultStatus":"unaffected","ecosystem":"npm","packageName":"n8n","product":"n8n","source":"CNA: VulnCheck","vendor":"n8n-io","versions":[{"lessThan":"2.44.1","status":"affected","version":"2.44.0","versionType":"semver"},{"status":"unaffected","version":"2.44.1","versionType":"semver"}]},{"defaultStatus":"unaffected","ecosystem":"npm","packageName":"n8n","product":"n8n","source":"CNA: VulnCheck","vendor":"n8n-io","versions":[{"lessThan":"2.43.5","status":"affected","version":"2.0.0","versionType":"semver"},{"status":"unaffected","version":"2.43.5","versionType":"semver"}]}],"cveId":"CVE-2026-118648","cwes":["CWE-79"],"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.","epss":{"date":"2026-11-02","percentile":0.17607,"score":0.00259},"exploits":[],"kev":null,"metrics":[{"score":8.4,"severity":"high","source":"CNA: 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","version":"4.0"},{"score":7.3,"severity":"high","source":"CNA: VulnCheck","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N","version":"3.1"}],"modifiedAt":1793711967168,"publishedAt":1793213986959,"references":[{"source":"CNA: VulnCheck","tags":["vendor-advisory"],"url":"https://github.com/n8n-io/n8n/security/advisories/GHSA-mp7q-23hg-35cf"},{"source":"CNA: VulnCheck","tags":["third-party-advisory"],"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"}],"remediation":[],"revision":"53aa22e4820c8e3afd74c7e07cc4efe555b2dda6853e99fabea2955c4fb1f0c9","sources":[{"modifiedAt":1793711967168,"name":"CNA: VulnCheck","retrievedAt":1793714949747,"url":"https://www.cve.org/CVERecord?id=CVE-2026-118648"},{"modifiedAt":null,"name":"FIRST EPSS","retrievedAt":1793714964705,"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-118648"}],"ssvc":{"assessedAt":1793711928565,"automatable":"no","exploitation":"none","source":"ADP: CISA-ADP","technicalImpact":"total"},"status":"published","title":"n8n before 1.123.85, 2.43.5, and 2.44.1 Stored XSS via Webhook Responses Missing Sandbox Policy","updatedAt":1793714964705}