{"id":"CVE-2026-85166","aliases":[],"cve":{"records":[{"id":"CVE-2026-85166","source":"VulnCheck","state":"PUBLISHED","reasons":[],"replacements":[],"disputed":false,"unsupportedWhenAssigned":false,"reserved":"2026-09-03T11:05:09.078Z","published":"2026-09-03T11:22:16.613Z","modified":"2026-10-29T21:16:58.264Z"}],"publishers":[{"name":"VulnCheck","role":"CNA","organizationId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","modified":"2026-10-29T21:16:58.264Z"},{"name":"CISA-ADP","role":"ADP","organizationId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","modified":"2026-09-03T14:30:17.597Z"}],"references":[{"url":"https://github.com/n8n-io/n8n/security/advisories/GHSA-4r56-g65c-fm83","tags":["vendor-advisory"],"source":"VulnCheck"},{"url":"https://www.vulncheck.com/advisories/n8n-before-2.36.2-credential-exfiltration-via-workflow-tool-node","tags":["third-party-advisory"],"source":"VulnCheck"}],"weaknesses":[{"id":"CWE-863","description":"Incorrect Authorization","source":"VulnCheck"}],"applicability":[{"source":"VulnCheck","statements":[{"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"}]}]}]}],"prioritization":[{"source":"CISA-ADP","type":"SSVC","role":"CISA Coordinator","timestamp":"2026-09-03T14:05:57.164569Z","decisions":[{"name":"Exploitation","value":"none"},{"name":"Automatable","value":"no"},{"name":"Technical Impact","value":"partial"}]}]},"title":"n8n before 2.36.2 Credential Exfiltration via Workflow Tool Node","titleSource":"VulnCheck","descriptionSource":"VulnCheck","description":"n8n before 2.35.4 and 2.36.x before 2.36.2 does not validate credential references in the inline workflow JSON of nodes that execute an inline sub-workflow (e.g., the Workflow Tool node). A shared-workflow editor, or any user creating/updating a workflow via the REST API, Public API, or MCP, can persist a node referencing a credential they do not own. When the workflow is later executed under an identity that holds the credential, the inline sub-workflow resolves the secret and can send it to an attacker-controlled endpoint, resulting in credential exfiltration.","score":7.2,"severity":"high","published":"2026-09-03T11:22:16.613Z","modified":"2026-10-29T21:16:58.264Z","withdrawn":false,"knownExploited":false,"affected":[],"products":[{"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-2026-85166"},{"vendor":"n8n-io","name":"n8n","platforms":[],"versions":[{"version":"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-2026-85166"}],"remediation":[],"references":["https://github.com/n8n-io/n8n/security/advisories/GHSA-4r56-g65c-fm83","https://www.vulncheck.com/advisories/n8n-before-2.36.2-credential-exfiltration-via-workflow-tool-node"],"sources":[{"name":"CVE","id":"CVE-2026-85166","modified":"2026-10-29T21:16:58.264Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-85166"}],"assessments":[{"source":"VulnCheck","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:H/SA:L","score":7.2}],"sourceAffected":[],"observedAt":"2026-10-29T21:37:46.912Z","kev":{"status":"not-listed","checkedAt":"2026-10-31T12:25:34.536Z"},"coverage":[{"source":"NVD","status":"available","checkedAt":"2026-10-29T21:00:39.020Z","attemptedAt":"2026-10-29T21:00:39.020Z"},{"source":"GHSA","status":"available","checkedAt":"2026-10-29T21:00:38.545Z","attemptedAt":"2026-10-29T21:00:38.545Z"},{"source":"EUVD","status":"available","checkedAt":"2026-10-29T21:00:40.708Z","attemptedAt":"2026-10-29T21:00:40.708Z"},{"source":"EPSS","status":"available","checkedAt":"2026-10-29T21:00:38.547Z","attemptedAt":"2026-10-29T21:00:38.547Z"}],"evidence":[{"source":"FIRST EPSS","id":"CVE-2026-85166","url":"https://www.first.org/epss/","probability":0.00358,"percentile":0.29472,"date":"2026-10-29","checkedAt":"2026-10-29T21:00:38.547Z"},{"source":"GitHub Advisory Database","id":"GHSA-4qfv-x7mh-xjhv","url":"https://github.com/advisories/GHSA-4qfv-x7mh-xjhv","modified":"2026-09-10T21:31:19Z","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","checkedAt":"2026-10-29T21:00:38.545Z"},{"source":"NVD","id":"CVE-2026-85166","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-85166","modified":"2026-09-10T19:54:12.750","score":7.2,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:H/SA:L/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":"2026-10-29T21:00:39.020Z"},{"source":"NVD","id":"CVE-2026-85166","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-85166","modified":"2026-09-10T19:54:12.750","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","checkedAt":"2026-10-29T21:00:39.020Z"},{"source":"ENISA EUVD","id":"EUVD-2026-70401","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-70401","modified":"Oct 29, 2026, 8:20:17 PM","score":7.2,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:H/SA:L","checkedAt":"2026-10-29T21:00:40.708Z"}],"aiSummary":{"text":"n8n versions before 2.35.4 and 2.36.x before 2.36.2 are affected by credential exfiltration via workflow tool nodes. An attacker with access to create or update workflows can persist a node referencing a credential they do not own. This can lead to credential exfiltration when the workflow is executed under an identity that holds the credential.","model":"@cf/meta/llama-3.3-70b-instruct-fp8-fast","generatedAt":"2026-10-30T09:26:15.688Z","sources":[{"name":"CVE","url":"https://www.cve.org/CVERecord?id=CVE-2026-85166"}]}}