{"id":"CVE-2026-56354","title":"n8n - Cross-Site Scripting and Open Redirect in Form Node","summary":"n8n before 1.123.24, 2.10.4, and 2.12.0 (across its 1.x and 2.x branches) contains cross-site scripting and open redirect vulnerabilities in the Form Node due to unsanitized HTML description fields and overly permissive iframe sandbox po…","severity":"medium","cvss":4.1,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:L/A:N","cvssSource":"cna","cwe":["CWE-79"],"vendor":"n8n","product":"n8n","affected":["n8n < 1.123.24","n8n >= 2.0.0-rc.0 < 2.10.4","n8n >= 2.11.0 < 2.12.0","n8n >= 2.0.0-rc.0 < 2.10.4","n8n < 1.123.24"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-07-10T16:42:31.372790Z"},"published":"2026-07-10","updated":"2026-10-29","sourceUpdated":"2026-10-29T21:15:46.293Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-56354","references":[{"url":"https://github.com/n8n-io/n8n/security/advisories/GHSA-w673-8fjw-457c","label":"GitHub Security Advisory (GHSA-w673-8fjw-457c)"},{"url":"https://www.vulncheck.com/advisories/n8n-cross-site-scripting-and-open-redirect-in-form-node","label":"VulnCheck Advisory: n8n - Cross-Site Scripting and Open Redirect in Form Node"}],"tags":["cve.org"],"epss":0.00238,"epssPercentile":0.14932,"ingestedAt":"2026-11-03T08:39:35.556Z","slug":"CVE-2026-56354","body":"## Overview\n\nn8n before 1.123.24, 2.10.4, and 2.12.0 (across its 1.x and 2.x branches) contains cross-site scripting and open redirect vulnerabilities in the Form Node due to unsanitized HTML description fields and overly permissive iframe sandbox policies. Authenticated users with workflow creation permissions can inject malicious scripts or redirect parameters to perform stored XSS attacks or phishing redirects against end users.\n\n## Affected\n\n- `n8n < 1.123.24`\n- `n8n >= 2.0.0-rc.0 < 2.10.4`\n- `n8n >= 2.11.0 < 2.12.0`\n- `n8n >= 2.0.0-rc.0 < 2.10.4`\n- `n8n < 1.123.24`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":23,"depthScoreParts":{"impact":22.5,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}