CVE-2026-72772

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-72772", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-08-10T15:09:12.954Z", "datePublished": "2026-08-11T12:17:11.295Z", "dateUpdated": "2026-10-29T21:16:45.174Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-10-29T21:16:45.174Z"}, "datePublic": "2026-07-22T00:00:00.000Z", "title": "n8n before 2.32.1 Authentication Bypass via Token Exchange", "descriptions": [{"lang": "en", "value": "n8n before 2.32.1 (and before 2.31.5) is vulnerable to account takeover via the Token Exchange Embed Login feature. When a validly-signed incoming token was matched to a local account by its email claim, the service did not verify that the email claim was verified, nor that the trusted key's permitted role ceiling covered that account. As a result, anyone able to obtain a token accepted by a configured trusted key (for example, a trusted issuer emitting unverified email addresses) could authenticate as any existing user and gain full account control. This issue only affects instances where the embed login feature is enabled and at least one trusted key source is configured."}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "Weak Password Recovery Mechanism for Forgotten Password", "cweId": "CWE-640", "type": "CWE"}]}], "affected": [{"vendor": "n8n-io", "product": "n8n", "defaultStatus": "unaffected", "packageURL": "pkg:npm/n8n", "versions": [{"version": "2.32.0", "status": "affected", "versionType": "semver", "lessThan": "2.32.1"}, {"version": "2.32.1", "status": "unaffected", "versionType": "semver"}]}, {"vendor": "n8n-io", "product": "n8n", "defaultStatus": "unaffected", "packageURL": "pkg:npm/n8n", "versions": [{"version": "0", "status": "affected", "versionType": "semver", "lessThan": "2.31.5"}, {"version": "2.31.5", "status": "unaffected", "versionType": "semver"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:n8n:n8n:*:*:*:*:*:node.js:*:*", "versionEndExcluding": "2.32.1", "versionStartIncluding": "2.32.0"}, {"vulnerable": true, "criteria": "cpe:2.3:a:n8n:n8n:*:*:*:*:*:node.js:*:*", "versionEndExcluding": "2.31.5"}]}]}], "metrics": [{"format": "CVSS", "cvssV4_0": {"version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:L", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "privilegesRequired": "LOW", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "HIGH", "subIntegrityImpact": "HIGH", "subAvailabilityImpact": "LOW", "baseScore": 8.9, "baseSeverity": "HIGH"}}], "references": [{"url": "https://github.com/n8n-io/n8n/security/advisories/GHSA-8342-988q-86cr", "tags": ["vendor-advisory"], "name": "GitHub Security Advisory (GHSA-8342-988q-86cr)"}, {"name": "VulnCheck Advisory: n8n before 2.32.1 Authentication Bypass via Token Exchange", "tags": ["third-party-advisory"], "url": "https://www.vulncheck.com/advisories/n8n-before-authentication-bypass-via-token-exchange"}], "x_generator": {"engine": "vulncheck-endgame"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-08-11T14:57:25.769099Z", "id": "CVE-2026-72772", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-08-11T14:57:37.608Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-72772", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-08-11T14:57:25.769099Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-08-11T14:57:31.516Z"}}], "cna": {"title": "n8n before 2.32.1 Authentication Bypass via Token Exchange", "metrics": [{"format": "CVSS", "cvssV4_0": {"version": "4.0", "baseScore": 8.9, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:L", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "privilegesRequired": "LOW", "subIntegrityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "subAvailabilityImpact": "LOW", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "HIGH", "vulnConfidentialityImpact": "HIGH"}}], "affected": [{"vendor": "n8n-io", "product": "n8n", "versions": [{"status": "affected", "version": "2.32.0", "lessThan": "2.32.1", "versionType": "semver"}, {"status": "unaffected", "version": "2.32.1", "versionType": "semver"}], "packageURL": "pkg:npm/n8n", "defaultStatus": "unaffected"}, {"vendor": "n8n-io", "product": "n8n", "versions": [{"status": "affected", "version": "0", "lessThan": "2.31.5", "versionType": "semver"}, {"status": "unaffected", "version": "2.31.5", "versionType": "semver"}], "packageURL": "pkg:npm/n8n", "defaultStatus": "unaffected"}], "datePublic": "2026-07-22T00:00:00.000Z", "references": [{"url": "https://github.com/n8n-io/n8n/security/advisories/GHSA-8342-988q-86cr", "name": "GitHub Security Advisory (GHSA-8342-988q-86cr)", "tags": ["vendor-advisory"]}, {"url": "https://www.vulncheck.com/advisories/n8n-before-authentication-bypass-via-token-exchange", "name": "VulnCheck Advisory: n8n before 2.32.1 Authentication Bypass via Token Exchange", "tags": ["third-party-advisory"]}], "x_generator": {"engine": "vulncheck-endgame"}, "descriptions": [{"lang": "en", "value": "n8n before 2.32.1 (and before 2.31.5) is vulnerable to account takeover via the Token Exchange Embed Login feature. When a validly-signed incoming token was matched to a local account by its email claim, the service did not verify that the email claim was verified, nor that the trusted key's permitted role ceiling covered that account. As a result, anyone able to obtain a token accepted by a configured trusted key (for example, a trusted issuer emitting unverified email addresses) could authenticate as any existing user and gain full account control. This issue only affects instances where the embed login feature is enabled and at least one trusted key source is configured."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-640", "description": "Weak Password Recovery Mechanism for Forgotten Password"}]}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:n8n:n8n:*:*:*:*:*:node.js:*:*", "vulnerable": true, "versionEndExcluding": "2.32.1", "versionStartIncluding": "2.32.0"}, {"criteria": "cpe:2.3:a:n8n:n8n:*:*:*:*:*:node.js:*:*", "vulnerable": true, "versionEndExcluding": "2.31.5"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-10-29T21:16:45.174Z"}}}, "cveMetadata": {"cveId": "CVE-2026-72772", "state": "PUBLISHED", "dateUpdated": "2026-10-29T21:16:45.174Z", "dateReserved": "2026-08-10T15:09:12.954Z", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "datePublished": "2026-08-11T12:17:11.295Z", "assignerShortName": "VulnCheck"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "packageURL": "pkg:npm/n8n", "product": "n8n", "vendor": "n8n-io", "versions": [{"lessThan": "2.32.1", "status": "affected", "version": "2.32.0", "versionType": "semver"}, {"status": "unaffected", "version": "2.32.1", "versionType": "semver"}]}, {"defaultStatus": "unaffected", "packageURL": "pkg:npm/n8n", "product": "n8n", "vendor": "n8n-io", "versions": [{"lessThan": "2.31.5", "status": "affected", "version": "0", "versionType": "semver"}, {"status": "unaffected", "version": "2.31.5", "versionType": "semver"}]}], "source": "disclosure@vulncheck.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:n8n:n8n:*:*:*:*:*:node.js:*:*", "matchCriteriaId": "F15BA8C2-64F1-4840-A451-E5D8B6198B30", "versionEndExcluding": "2.31.5", "vulnerable": true}, {"criteria": "cpe:2.3:a:n8n:n8n:2.32.0:*:*:*:*:node.js:*:*", "matchCriteriaId": "4AC4E002-974B-4748-A5CB-F8A40E4F3B24", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "n8n before 2.32.1 (and before 2.31.5) is vulnerable to account takeover via the Token Exchange Embed Login feature. When a validly-signed incoming token was matched to a local account by its email claim, the service did not verify that the email claim was verified, nor that the trusted key's permitted role ceiling covered that account. As a result, anyone able to obtain a token accepted by a configured trusted key (for example, a trusted issuer emitting unverified email addresses) could authenticate as any existing user and gain full account control. This issue only affects instances where the embed login feature is enabled and at least one trusted key source is configured."}, {"lang": "es", "value": "n8n anterior a 2.32.1 (y anterior a 2.31.5) es vulnerable a la toma de control de cuenta a trav\u00e9s de la funci\u00f3n de inicio de sesi\u00f3n incrustado de intercambio de tokens. Cuando un token entrante v\u00e1lidamente firmado se emparejaba con una cuenta local por su declaraci\u00f3n de correo electr\u00f3nico, el servicio no verificaba que la declaraci\u00f3n de correo electr\u00f3nico estuviera verificada, ni que el techo de rol permitido de la clave de confianza cubriera esa cuenta. Como resultado, cualquiera que pudiera obtener un token aceptado por una clave de confianza configurada (por ejemplo, un emisor de confianza que emitiera direcciones de correo electr\u00f3nico no verificadas) podr\u00eda autenticarse como cualquier usuario existente y obtener control total de la cuenta. Este problema solo afecta a las instancias donde la funci\u00f3n de inicio de sesi\u00f3n incrustado est\u00e1 habilitada y al menos una fuente de clave de confianza est\u00e1 configurada."}], "id": "CVE-2026-72772", "lastModified": "2026-10-29T21:17:31.453", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 8.9, "baseSeverity": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "LOW", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "LOW", "subConfidentialityImpact": "HIGH", "subIntegrityImpact": "HIGH", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/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", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "disclosure@vulncheck.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-72772", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-08-11T14:57:25.769099Z", "version": "2.0.3"}}]}, "published": "2026-08-11T13:19:07.623", "references": [{"source": "disclosure@vulncheck.com", "tags": ["Mitigation", "Vendor Advisory"], "url": "https://github.com/n8n-io/n8n/security/advisories/GHSA-8342-988q-86cr"}, {"source": "disclosure@vulncheck.com", "tags": ["Third Party Advisory"], "url": "https://www.vulncheck.com/advisories/n8n-before-authentication-bypass-via-token-exchange"}], "sourceIdentifier": "disclosure@vulncheck.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-640"}], "source": "disclosure@vulncheck.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,2.32.1)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "2.32.1"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,2.31.5)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "2.31.5"}}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "n8n", "source": "cna", "vendor": "n8n-io"}, "product": "n8n", "vendor": "n8n"}], "created": "2026-08-11T23:30:06.056819+00:00", "updated": "2026-08-13T10:45:03.800742+00:00", "vendors": ["n8n", "n8n$PRODUCT$n8n"]}