{"id":"EUVD-2026-47632","revision":null,"records":[{"revision":"5e029f57035149618ee84e53f2383daf","observedAt":"2026-10-29T22:48:55.035+00:00","statement":{"source":"cve-program","id":"CVE-2026-65016","aliases":[],"title":"n8n before 1.123.64, 2.29.8, and 2.30.1 Privilege Escalation via SSO Instance-Role","description":"n8n versions before 1.123.64, 2.29.8, and 2.30.1 contain a privilege escalation vulnerability in Enterprise SSO instance-role provisioning. The provisioning path maps an IdP-asserted role claim to an n8n global role but does not prevent assignment of the global:owner role (unlike the token-exchange identity path, which rejects it). An SSO-authenticated user whose instance-role claim resolves to global:owner is provisioned as instance owner, gaining full administrative control over workflows, credentials, users, and instance configuration. Exploitation requires that Enterprise SSO is configured, instance-role provisioning is enabled via N8N_SSO_SCOPES_PROVISION_INSTANCE_ROLE (disabled by default), and the attacker controls the instance-role claim value issued by the IdP.","state":0,"publishedAt":"2026-07-22T11:21:38.704+00:00","modifiedAt":"2026-10-29T21:16:20.6+00:00","affected":[{"ecosystem":"Vendor product","name":"n8n","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"n8n-io\",\n                    \"product\": \"n8n\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"packageURL\": \"pkg:npm/n8n\",\n                    \"versions\": [\n                        {\n                            \"version\": \"0\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\",\n                            \"lessThan\": \"1.123.64\"\n                        },\n                        {\n                            \"version\": \"1.123.64\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"n8n","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"n8n-io\",\n                    \"product\": \"n8n\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"packageURL\": \"pkg:npm/n8n\",\n                    \"versions\": [\n                        {\n                            \"version\": \"2.30.0\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\",\n                            \"lessThan\": \"2.30.1\"\n                        },\n                        {\n                            \"version\": \"2.30.1\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"n8n","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"n8n-io\",\n                    \"product\": \"n8n\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"packageURL\": \"pkg:npm/n8n\",\n                    \"versions\": [\n                        {\n                            \"version\": \"2.0.0-rc.0\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\",\n                            \"lessThan\": \"2.29.8\"\n                        },\n                        {\n                            \"version\": \"2.29.8\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","score":7.7,"severity":"HIGH"}],"references":["https://github.com/n8n-io/n8n/security/advisories/GHSA-35q8-9mj6-wjmf","https://www.vulncheck.com/advisories/n8n-before-privilege-escalation-via-sso-instance-role"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-65016","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-65016","identifiers":["CVE-2026-65016"]},"retained":false,"historicalAffected":[]},{"revision":"536f6a3286c4423eb7c3c67bf85c0dcf","observedAt":"2026-11-05T12:48:58.178+00:00","statement":{"source":"euvd","id":"EUVD-2026-47632","aliases":["CVE-2026-65016","GHSA-mwq7-vcmc-cm4q","GHSA-35q8-9mj6-wjmf"],"title":"n8n versions before 1.123.64, 2.29.8, and 2.30.1 contain a privilege escalation vulnerability in Enterprise SSO instance-role provisioning. The provisioning path maps an IdP-asserted role claim to an n8n global role but does not prevent ass…","description":"n8n versions before 1.123.64, 2.29.8, and 2.30.1 contain a privilege escalation vulnerability in Enterprise SSO instance-role provisioning. The provisioning path maps an IdP-asserted role claim to an n8n global role but does not prevent assignment of the global:owner role (unlike the token-exchange identity path, which rejects it). An SSO-authenticated user whose instance-role claim resolves to global:owner is provisioned as instance owner, gaining full administrative control over workflows, credentials, users, and instance configuration. Exploitation requires that Enterprise SSO is configured, instance-role provisioning is enabled via N8N_SSO_SCOPES_PROVISION_INSTANCE_ROLE (disabled by default), and the attacker controls the instance-role claim value issued by the IdP.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","score":7.7,"severity":null}],"references":["https://github.com/n8n-io/n8n/security/advisories/GHSA-35q8-9mj6-wjmf","https://www.vulncheck.com/advisories/n8n-before-privilege-escalation-via-sso-instance-role"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-47632","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Jul 22, 2026, 11:21:38 AM","dateUpdated":"Oct 29, 2026, 9:16:20 PM"},"relatedAdvisories":[],"note":"EUVD source date text has no stated timezone and is retained without inventing a UTC instant. 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The provisioning path maps an IdP-asserted role claim to an n8n global role but does not prevent assignment of the global:owner role (unlike the token-exchange identity path, which rejects it). An SSO-authenticated user whose instance-role claim resolves to global:owner is provisioned as instance owner, gaining full administrative control over workflows, credentials, users, and instance configuration. Exploitation requires that Enterprise SSO is configured, instance-role provisioning is enabled via N8N_SSO_SCOPES_PROVISION_INSTANCE_ROLE (disabled by default), and the attacker controls the instance-role claim value issued by the IdP.","state":0,"publishedAt":"2026-07-22T12:18:18.733+00:00","modifiedAt":"2026-10-29T19:17:25.8+00:00","affected":[],"metrics":[{"system":"CVSS 4.0 · disclosure@vulncheck.com · Secondary","vector":"CVSS:4.0/AV:N/AC:L/AT:P/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","score":7.7,"severity":"HIGH"},{"system":"CVSS 3.1 · nvd@nist.gov · Primary","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":8.8,"severity":"HIGH"}],"references":["https://github.com/n8n-io/n8n/security/advisories/GHSA-35q8-9mj6-wjmf","https://www.vulncheck.com/advisories/n8n-before-privilege-escalation-via-sso-instance-role"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-65016","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Analyzed","weaknesses":["CWE-639"],"productCriteria":["cpe:2.3:a:n8n:n8n:*:*:*:*:community:node.js:*:*","cpe:2.3:a:n8n:n8n:*:*:*:*:enterprise:node.js:*:*","cpe:2.3:a:n8n:n8n:2.30.0:*:*:*:community:node.js:*:*","cpe:2.3:a:n8n:n8n:2.30.0:*:*:*:enterprise:node.js:*:*"],"sourceDates":{"published":"2026-07-22T12:18:18.733","lastModified":"2026-10-29T19:17:25.800"},"relatedAdvisories":[],"note":"NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2026-65016","identifiers":["CVE-2026-65016"]},"retained":false,"historicalAffected":[]},{"revision":"4f7c28df66e6440ca0dedb17cb201866","observedAt":"2026-10-24T13:17:17.793+00:00","statement":{"source":"osv","id":"GHSA-35q8-9mj6-wjmf","aliases":["CVE-2026-65016"],"title":"n8n: SSO Instance-Role Provisioning Allows Privilege Escalation to Instance Owner","description":"## Impact\nn8n's Enterprise SSO instance-role provisioning maps a role claim asserted by the configured Identity Provider (IdP) to an n8n global role and applies it during authentication. The provisioning path did not prevent assignment of the `global:owner` role, unlike the token-exchange identity path, which explicitly rejects it. As a result, an SSO-authenticated user whose instance-role claim resolves to `global:owner` is provisioned as an instance owner, obtaining full administrative control over all workflows, credentials, users, and instance configuration.\n\nThis is a privilege-escalation issue that is exploitable only under specific conditions. It affects instances where Enterprise SSO is configured and instance-role provisioning is enabled via the `N8N_SSO_SCOPES_PROVISION_INSTANCE_ROLE` flag, which is disabled by default. Exploitation additionally requires the attacker to control the value of the instance-role claim issued by the IdP. As this claim is typically an administrator-managed attribute, exploitation generally requires control over the IdP or its claim-to-role mapping, or a permissive IdP configuration in which a lower-privileged user can influence the claim value. Deployments that do not use Enterprise SSO, or that have instance-role provisioning disabled, are not affected.\n\n## Patches\nThe issue has been fixed in n8n versions 1.123.64, 2.29.8, and 2.30.1. Users should upgrade to one of these versions or later to remediate the vulnerability.\n\n## Workarounds\nIf upgrading is not immediately possible, administrators should consider the following temporary mitigations:\n- Disable instance-role provisioning by unsetting or setting `N8N_SSO_SCOPES_PROVISION_INSTANCE_ROLE=false`.\n- Audit IdP claim mappings to ensure no user-controllable attribute can supply the instance-role claim value.\n- Restrict SSO access to fully trusted users only.\n\nThese workarounds do not fully remediate the risk and should only be used as short-term mitigation measures.","state":0,"publishedAt":"2026-07-22T22:04:04+00:00","modifiedAt":"2026-07-22T22:26:48.326763+00:00","affected":[{"ecosystem":"npm","name":"n8n","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"},{"kind":"fixed","version":"1.123.64"}]}],"versions":[],"rawVersionEvidence":null},{"ecosystem":"npm","name":"n8n","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"2.30.0"},{"kind":"fixed","version":"2.30.1"}]}],"versions":[],"rawVersionEvidence":null},{"ecosystem":"npm","name":"n8n","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"2.0.0-rc.0"},{"kind":"fixed","version":"2.29.8"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[{"system":"CVSS_V4","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","score":null,"severity":null},{"system":"Publisher rating","vector":null,"score":null,"severity":"HIGH"}],"references":["https://github.com/n8n-io/n8n/security/advisories/GHSA-35q8-9mj6-wjmf","https://nvd.nist.gov/vuln/detail/CVE-2026-65016","https://github.com/n8n-io/n8n","https://github.com/n8n-io/n8n/releases/tag/n8n@1.123.64","https://github.com/n8n-io/n8n/releases/tag/n8n@2.29.8","https://github.com/n8n-io/n8n/releases/tag/n8n@2.30.1","https://www.vulncheck.com/advisories/n8n-before-privilege-escalation-via-sso-instance-role"],"sourceUrl":"https://github.com/advisories/GHSA-35q8-9mj6-wjmf","license":"GitHub Advisory Database · CC-BY-4.0","key":"osv:GHSA-35q8-9mj6-wjmf","identifiers":["GHSA-35q8-9mj6-wjmf","CVE-2026-65016"]},"retained":false,"historicalAffected":[]},{"revision":"df9384ec322b4ca98c80950d3a416b61","observedAt":"2026-10-24T13:17:17.793+00:00","statement":{"source":"osv","id":"GHSA-mwq7-vcmc-cm4q","aliases":[],"title":"Duplicate Advisory: SSO Instance-Role Provisioning Allows Privilege Escalation to Instance Owner","description":"## Duplicate Advisory\n\nThis advisory has been withdrawn because it is a duplicate of\u00A0GHSA-35q8-9mj6-wjmf. This link is maintained to preserve external references.\n\n## Original Description\nn8n versions before 1.123.64, 2.29.8, and 2.30.1 contain a privilege escalation vulnerability in Enterprise SSO instance-role provisioning. The provisioning path maps an IdP-asserted role claim to an n8n global role but does not prevent assignment of the global:owner role (unlike the token-exchange identity path, which rejects it). An SSO-authenticated user whose instance-role claim resolves to global:owner is provisioned as instance owner, gaining full administrative control over workflows, credentials, users, and instance configuration. Exploitation requires that Enterprise SSO is configured, instance-role provisioning is enabled via N8N_SSO_SCOPES_PROVISION_INSTANCE_ROLE (disabled by default), and the attacker controls the instance-role claim value issued by the IdP.","state":2,"publishedAt":"2026-07-22T12:32:17+00:00","modifiedAt":"2026-07-22T22:16:06.8356182+00:00","affected":[{"ecosystem":"npm","name":"n8n","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[{"system":"CVSS_V4","vector":"CVSS:4.0/AV:N/AC:L/AT:P/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","score":null,"severity":null},{"system":"Publisher rating","vector":null,"score":null,"severity":"HIGH"}],"references":["https://github.com/n8n-io/n8n/security/advisories/GHSA-35q8-9mj6-wjmf","https://nvd.nist.gov/vuln/detail/CVE-2026-65016","https://www.vulncheck.com/advisories/n8n-before-privilege-escalation-via-sso-instance-role"],"sourceUrl":"https://github.com/advisories/GHSA-mwq7-vcmc-cm4q","license":"GitHub Advisory Database · CC-BY-4.0","key":"osv:GHSA-mwq7-vcmc-cm4q","identifiers":["GHSA-mwq7-vcmc-cm4q"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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