{"id":"CVE-2026-65589","sourceIdentifier":"disclosure@vulncheck.com","published":"2026-07-22T12:18:18.857","lastModified":"2026-10-29T19:17:25.990","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"n8n versions before 1.123.64 fail to properly mask custom HTTP header credentials in LLM sub-node execution data, writing plaintext API keys and secrets to workflow execution records. Authenticated users with access to execution data can read exposed header values and credentials that persist in the database and can be exported."},{"lang":"es","value":"Las versiones de n8n anteriores a la 1.123.64 fallan al enmascarar correctamente las credenciales de encabezado HTTP personalizadas en los datos de ejecución de subnodos LLM, escribiendo claves API y secretos en texto plano en los registros de ejecución de flujos de trabajo. Los usuarios autenticados con acceso a los datos de ejecución pueden leer los valores de encabezado y las credenciales expuestos que persisten en la base de datos y pueden ser exportados."}],"affected":[{"source":"disclosure@vulncheck.com","affectedData":[{"vendor":"n8n-io","product":"n8n","defaultStatus":"unaffected","packageURL":"pkg:npm/n8n","versions":[{"version":"0","lessThan":"1.123.64","versionType":"semver","status":"affected"},{"version":"1.123.64","versionType":"semver","status":"unaffected"}]},{"vendor":"n8n-io","product":"n8n","defaultStatus":"unaffected","packageURL":"pkg:npm/n8n","versions":[{"version":"2.30.0","lessThan":"2.30.1","versionType":"semver","status":"affected"},{"version":"2.30.1","versionType":"semver","status":"unaffected"}]},{"vendor":"n8n-io","product":"n8n","defaultStatus":"unaffected","packageURL":"pkg:npm/n8n","versions":[{"version":"2.0.0-rc.0","lessThan":"2.29.8","versionType":"semver","status":"affected"},{"version":"2.29.8","versionType":"semver","status":"unaffected"}]}]}],"metrics":{"cvssMetricV40":[{"source":"disclosure@vulncheck.com","type":"Secondary","cvssData":{"version":"4.0","vectorString":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:H/SI:L/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","baseScore":5.1,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"PRESENT","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"LOW","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"HIGH","subIntegrityImpact":"LOW","subAvailabilityImpact":"NONE","exploitMaturity":"NOT_DEFINED","confidentialityRequirement":"NOT_DEFINED","integrityRequirement":"NOT_DEFINED","availabilityRequirement":"NOT_DEFINED","modifiedAttackVector":"NOT_DEFINED","modifiedAttackComplexity":"NOT_DEFINED","modifiedAttackRequirements":"NOT_DEFINED","modifiedPrivilegesRequired":"NOT_DEFINED","modifiedUserInteraction":"NOT_DEFINED","modifiedVulnConfidentialityImpact":"NOT_DEFINED","modifiedVulnIntegrityImpact":"NOT_DEFINED","modifiedVulnAvailabilityImpact":"NOT_DEFINED","modifiedSubConfidentialityImpact":"NOT_DEFINED","modifiedSubIntegrityImpact":"NOT_DEFINED","modifiedSubAvailabilityImpact":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED"}}],"cvssMetricV31":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","baseScore":6.5,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"NONE","availabilityImpact":"NONE"},"exploitabilityScore":2.8,"impactScore":3.6}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-07-23T13:52:00.547281Z","id":"CVE-2026-65589","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"weaknesses":[{"source":"disclosure@vulncheck.com","type":"Secondary","description":[{"lang":"en","value":"CWE-532"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:n8n:n8n:*:*:*:*:community:node.js:*:*","versionEndExcluding":"1.123.64","matchCriteriaId":"843094AD-81C8-4961-A8A1-037468DEACA7"},{"vulnerable":true,"criteria":"cpe:2.3:a:n8n:n8n:*:*:*:*:enterprise:node.js:*:*","versionEndExcluding":"1.123.64","matchCriteriaId":"E1626500-EC42-4BF5-8ECE-6E5E249D37F6"},{"vulnerable":true,"criteria":"cpe:2.3:a:n8n:n8n:*:*:*:*:community:node.js:*:*","versionStartIncluding":"2.0.0","versionEndExcluding":"2.29.8","matchCriteriaId":"3281592C-CB07-412C-9770-3521447ADEC1"},{"vulnerable":true,"criteria":"cpe:2.3:a:n8n:n8n:*:*:*:*:enterprise:node.js:*:*","versionStartIncluding":"2.0.0","versionEndExcluding":"2.29.8","matchCriteriaId":"E4A0C557-F57B-4931-A857-ACC4639C030D"},{"vulnerable":true,"criteria":"cpe:2.3:a:n8n:n8n:2.30.0:*:*:*:community:node.js:*:*","matchCriteriaId":"E125F7EF-F72F-427F-82DE-D6A505B1DF8F"},{"vulnerable":true,"criteria":"cpe:2.3:a:n8n:n8n:2.30.0:*:*:*:enterprise:node.js:*:*","matchCriteriaId":"3C2780A0-55EC-488D-9149-EE83BA246A38"}]}]}],"references":[{"url":"https://github.com/n8n-io/n8n/security/advisories/GHSA-89gh-3pgc-v5h2","source":"disclosure@vulncheck.com","tags":["Mitigation","Vendor Advisory"]},{"url":"https://www.vulncheck.com/advisories/n8n-before-credential-exposure-via-llm-node-execution-data","source":"disclosure@vulncheck.com","tags":["Third Party Advisory"]}]}