{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-33722", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-03-23T17:34:57.559Z", "datePublished": "2026-03-25T18:09:37.212Z", "dateUpdated": "2026-03-28T01:32:07.841Z"}, "containers": {"cna": {"title": "n8n Has External Secrets Authorization Bypass in Credential Saving", "problemTypes": [{"descriptions": [{"cweId": "CWE-863", "lang": "en", "description": "CWE-863: Incorrect Authorization", "type": "CWE"}]}], "metrics": [{"cvssV4_0": {"attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "privilegesRequired": "LOW", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "HIGH", "subIntegrityImpact": "HIGH", "subAvailabilityImpact": "HIGH", "baseScore": 7.3, "baseSeverity": "HIGH", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:H/SA:H", "version": "4.0"}}], "references": [{"name": "https://github.com/n8n-io/n8n/security/advisories/GHSA-fxcw-h3qj-8m8p", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/n8n-io/n8n/security/advisories/GHSA-fxcw-h3qj-8m8p"}], "affected": [{"vendor": "n8n-io", "product": "n8n", "versions": [{"version": "< 1.123.23", "status": "affected"}, {"version": ">= 2.0.0-rc.0, < 2.6.4", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-03-25T18:09:37.212Z"}, "descriptions": [{"lang": "en", "value": "n8n is an open source workflow automation platform. Prior to versions 2.6.4 and 1.123.23, an authenticated user without permission to list external secrets could reference a secret by the external name in a credential and retrieve its plaintext value when saving the credential. This bypassed the `externalSecret:list` permission check and allowed access to secrets stored in connected vaults without admin or owner privileges. This issue requires the instance to have an external secrets vault configured. The attacker must know or be able to guess the name of a target secret. The issue has been fixed in n8n versions 1.123.23 and 2.6.4. Users should upgrade to one of these versions or later to remediate the vulnerability. If upgrading is not immediately possible, administrators should consider the following temporary mitigations: Restrict n8n access to fully trusted users only, and/or disable external secrets integration until the patch can be applied. These workarounds do not fully remediate the risk and should only be used as short-term mitigation measures."}], "source": {"advisory": "GHSA-fxcw-h3qj-8m8p", "discovery": "UNKNOWN"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-03-28T01:28:29.316953Z", "id": "CVE-2026-33722", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-03-28T01:32:07.841Z"}}]}}

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{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:n8n:n8n:*:*:*:*:*:node.js:*:*", "matchCriteriaId": "61F1C7CD-0418-46C8-9E78-01772C8AA31A", "versionEndExcluding": "1.123.23", "vulnerable": true}, {"criteria": "cpe:2.3:a:n8n:n8n:*:*:*:*:*:node.js:*:*", "matchCriteriaId": "90529240-9B89-400F-86BB-C71AECB88862", "versionEndExcluding": "2.6.4", "versionStartIncluding": "2.0.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "n8n is an open source workflow automation platform. Prior to versions 2.6.4 and 1.123.23, an authenticated user without permission to list external secrets could reference a secret by the external name in a credential and retrieve its plaintext value when saving the credential. This bypassed the `externalSecret:list` permission check and allowed access to secrets stored in connected vaults without admin or owner privileges. This issue requires the instance to have an external secrets vault configured. The attacker must know or be able to guess the name of a target secret. The issue has been fixed in n8n versions 1.123.23 and 2.6.4. Users should upgrade to one of these versions or later to remediate the vulnerability. If upgrading is not immediately possible, administrators should consider the following temporary mitigations: Restrict n8n access to fully trusted users only, and/or disable external secrets integration until the patch can be applied. These workarounds do not fully remediate the risk and should only be used as short-term mitigation measures."}, {"lang": "es", "value": "n8n es una plataforma de automatizaci\u00f3n de flujos de trabajo de c\u00f3digo abierto. Antes de las versiones 2.6.4 y 1.123.23, un usuario autenticado sin permiso para listar secretos externos pod\u00eda referenciar un secreto por el nombre externo en una credencial y recuperar su valor en texto plano al guardar la credencial. Esto elud\u00eda la verificaci\u00f3n de permisos 'externalSecret:list' y permit\u00eda el acceso a secretos almacenados en b\u00f3vedas conectadas sin privilegios de administrador o propietario. Este problema requiere que la instancia tenga una b\u00f3veda de secretos externos configurada. El atacante debe conocer o ser capaz de adivinar el nombre de un secreto objetivo. El problema ha sido solucionado en las versiones 1.123.23 y 2.6.4 de n8n. Los usuarios deben actualizar a una de estas versiones o posteriores para remediar la vulnerabilidad. Si la actualizaci\u00f3n no es posible de inmediato, los administradores deben considerar las siguientes mitigaciones temporales: Restringir el acceso a n8n solo a usuarios de plena confianza, y/o deshabilitar la integraci\u00f3n de secretos externos hasta que se pueda aplicar el parche. Estas soluciones provisionales no remedian completamente el riesgo y solo deben usarse como medidas de mitigaci\u00f3n a corto plazo."}], "id": "CVE-2026-33722", "lastModified": "2026-03-27T19:34:18.007", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 1.6, "impactScore": 3.6, "source": "[email protected]", "type": "Primary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 7.3, "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": "HIGH", "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:N/VA:N/SC:H/SI:H/SA:H/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": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "[email protected]", "type": "Secondary"}]}, "published": "2026-03-25T19:16:51.153", "references": [{"source": "[email protected]", "tags": ["Vendor Advisory", "Mitigation"], "url": "https://github.com/n8n-io/n8n/security/advisories/GHSA-fxcw-h3qj-8m8p"}], "sourceIdentifier": "[email protected]", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-863"}], "source": "[email protected]", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,1.123.23)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[2.0.0-rc.0,2.6.4)"}}], "enrichment": {"confidence": 82.0, "confidence_source": "matching", "scores": [{"score": 82.0, "source": "matching"}]}, "original": {"product": "n8n", "source": "cna", "vendor": "n8n-io"}, "product": "n8n", "vendor": "n8n"}], "analysis": {"en": {"generated_at": "2026-03-25T19:41:53.255032+00:00", "value": {"mitigation_remediation": ["Upgrade n8n to version 1.123.23 or later (including 2.6.4).", "Restrict n8n access to fully trusted users only.", "Disable external secrets integration until the patch can be applied."], "summary": {"action": "Immediate Patch", "impact": "Unauthorized access to external secret data"}, "threat_synthesis": {"affected_systems": "The flaw affects the open\u2011source workflow automation platform n8n from n8n\u2011io. Any installation running a version earlier than 2.6.4 or 1.123.23 that has external secrets integration enabled is vulnerable. Users must know or guess the external name of a target secret to exploit the bug.", "description_and_impact": "An authentication\u2011based bypass in n8n allows a user who does not have permissions to list external secrets to reference a secret by name while saving a credential, resulting in the secret\u2019s plaintext being exposed. This issue bypasses the externalSecret:list check and grants secret disclosure even to users without admin or owner privileges. The weakness is an authorization bypass (CWE\u2011863) that directly compromises confidentiality of secrets stored in connected vaults.", "risk_and_exploitability": "The vulnerability carries a CVSS base score of 7.3, indicating high severity. EPSS data is not reported, and the issue is not listed in the CISA KEV catalog, but the attack is nevertheless feasible for authenticated users who can guess a secret name. The impact is substantial, as exposed secrets could leak privileged credentials or other sensitive data, potentially compromising connected services. The attack vector is through the credential\u2011saving API, requiring only valid authentication and knowledge of a secret\u2019s external identifier."}}}}, "created": "2026-03-25T21:46:31.041847+00:00", "updated": "2026-03-26T11:34:15.783444+00:00", "vendors": ["n8n", "n8n$PRODUCT$n8n"]}