{"id":"CVE-2026-85169","aliases":[],"cve":{"records":[{"id":"CVE-2026-85169","source":"VulnCheck","state":"PUBLISHED","reasons":[],"replacements":[],"disputed":false,"unsupportedWhenAssigned":false,"reserved":"2026-09-03T11:05:09.078Z","published":"2026-09-03T11:22:18.688Z","modified":"2026-10-29T21:17:00.267Z"}],"publishers":[{"name":"VulnCheck","role":"CNA","organizationId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","modified":"2026-10-29T21:17:00.267Z"},{"name":"CISA-ADP","role":"ADP","organizationId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","modified":"2026-09-04T19:56:45.200Z"}],"references":[{"url":"https://github.com/n8n-io/n8n/security/advisories/GHSA-9x83-43r8-5hwc","tags":["vendor-advisory"],"source":"VulnCheck"},{"url":"https://www.vulncheck.com/advisories/n8n-before-1.123.73-remote-code-execution-via-fromai-prototype-leak","tags":["third-party-advisory"],"source":"VulnCheck"}],"weaknesses":[{"id":"CWE-94","description":"Improper Control of Generation of Code ('Code Injection')","source":"VulnCheck"}],"applicability":[{"source":"VulnCheck","statements":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:n8n:n8n:*:*:*:*:*:*:*:*","versionEndExcluding":"1.123.73"}]}]},{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:n8n:n8n:*:*:*:*:*:*:*:*","versionEndExcluding":"2.36.2","versionStartIncluding":"2.36.0"}]}]},{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:n8n:n8n:*:*:*:*:*:*:*:*","versionEndExcluding":"2.35.4","versionStartIncluding":"2.0.0-rc.0"}]}]}]}],"prioritization":[{"source":"CISA-ADP","type":"SSVC","role":"CISA Coordinator","timestamp":"2026-09-04T03:55:59.136478Z","decisions":[{"name":"Exploitation","value":"none"},{"name":"Automatable","value":"no"},{"name":"Technical Impact","value":"total"}]}]},"title":"n8n before 1.123.73 Remote Code Execution via $fromAI Prototype Leak","titleSource":"VulnCheck","descriptionSource":"VulnCheck","description":"n8n versions before 1.123.73, 2.35.4, and 2.36.2 contain an expression sandbox escape in the $fromAI handler. $fromAI resolved a caller-supplied placeholder name without requiring it to be an own property and admitted reserved keys; against a primitive input value it returned a live host-prototype reference. An attacker with workflow-build privilege can walk the prototype chain to the Function constructor and compile/execute arbitrary code in the main n8n process, leading to remote code execution.","score":8.7,"severity":"high","published":"2026-09-03T11:22:18.688Z","modified":"2026-10-29T21:17:00.267Z","withdrawn":false,"knownExploited":false,"affected":[],"products":[{"vendor":"n8n-io","name":"n8n","platforms":[],"versions":[{"version":"0","status":"affected","lessThan":"1.123.73","versionType":"semver"},{"version":"1.123.73","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-2026-85169"},{"vendor":"n8n-io","name":"n8n","platforms":[],"versions":[{"version":"2.36.0","status":"affected","lessThan":"2.36.2","versionType":"semver"},{"version":"2.36.2","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-2026-85169"},{"vendor":"n8n-io","name":"n8n","platforms":[],"versions":[{"version":"2.0.0-rc.0","status":"affected","lessThan":"2.35.4","versionType":"semver"},{"version":"2.35.4","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-2026-85169"}],"remediation":[],"references":["https://github.com/n8n-io/n8n/security/advisories/GHSA-9x83-43r8-5hwc","https://www.vulncheck.com/advisories/n8n-before-1.123.73-remote-code-execution-via-fromai-prototype-leak"],"sources":[{"name":"CVE","id":"CVE-2026-85169","modified":"2026-10-29T21:17:00.267Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-85169"}],"assessments":[{"source":"VulnCheck","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","score":8.7}],"sourceAffected":[],"observedAt":"2026-10-29T21:37:51.528Z","kev":{"status":"not-listed","checkedAt":"2026-10-31T11:30:32.033Z"},"coverage":[{"source":"NVD","status":"available","checkedAt":"2026-10-29T21:50:34.133Z","attemptedAt":"2026-10-29T21:50:34.133Z"},{"source":"GHSA","status":"available","checkedAt":"2026-10-29T21:50:34.440Z","attemptedAt":"2026-10-29T21:50:34.440Z"},{"source":"EUVD","status":"available","checkedAt":"2026-10-29T21:50:34.862Z","attemptedAt":"2026-10-29T21:50:34.862Z"},{"source":"EPSS","status":"available","checkedAt":"2026-10-29T21:50:34.137Z","attemptedAt":"2026-10-29T21:50:34.137Z"}],"evidence":[{"source":"NVD","id":"CVE-2026-85169","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-85169","modified":"2026-10-29T21:17:34.280","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","checkedAt":"2026-10-29T21:50:34.133Z"},{"source":"NVD","id":"CVE-2026-85169","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-85169","modified":"2026-10-29T21:17:34.280","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","checkedAt":"2026-10-29T21:50:34.133Z"},{"source":"FIRST EPSS","id":"CVE-2026-85169","url":"https://www.first.org/epss/","probability":0.00879,"percentile":0.58992,"date":"2026-10-29","checkedAt":"2026-10-29T21:50:34.137Z"},{"source":"GitHub Advisory Database","id":"GHSA-733v-xpr6-gwgq","url":"https://github.com/advisories/GHSA-733v-xpr6-gwgq","modified":"2026-09-18T15:32:50Z","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","checkedAt":"2026-10-29T21:50:34.440Z"},{"source":"ENISA EUVD","id":"EUVD-2026-70404","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-70404","modified":"Oct 29, 2026, 8:20:19 PM","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","checkedAt":"2026-10-29T21:50:34.862Z"}],"aiSummary":{"text":"n8n versions before 1.123.73, 2.35.4, and 2.36.2 contain an expression sandbox escape in the $fromAI handler, allowing an attacker with workflow-build privilege to potentially execute arbitrary code. The vulnerability is due to the $fromAI handler resolving a caller-supplied placeholder name without requiring it to be an own property. An attacker can walk the prototype chain to the Function constructor.","model":"@cf/meta/llama-3.3-70b-instruct-fp8-fast","generatedAt":"2026-10-30T09:26:40.750Z","sources":[{"name":"CVE","url":"https://www.cve.org/CVERecord?id=CVE-2026-85169"}]}}