CVE-2026-65589

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.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/n8n-io/n8n/security/advisories/GHSA-89gh-3pgc-v5h2	Mitigation Vendor Advisory
https://www.vulncheck.com/advisories/n8n-before-credential-exposure-via-llm-node-execution-data	Third Party Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:n8n:n8n:::::community:node.js::
	cpe:2.3:a:n8n:n8n:::::enterprise:node.js::
	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::*

History

24 Oct 2026, 17:10

Type	Values Removed	Values Added
Summary		(es) 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.

Information

Published : 2026-07-22 12:18

Updated : 2026-10-29 19:17

NVD link : CVE-2026-65589

Mitre link : CVE-2026-65589

CVE.ORG link : CVE-2026-65589

JSON object : View

Products Affected

n8n

n8n

CWE

CWE-532

Insertion of Sensitive Information into Log File

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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 ejecuci\u00f3n de subnodos LLM, escribiendo claves API y secretos en texto plano en los registros de ejecuci\u00f3n de flujos de trabajo. Los usuarios autenticados con acceso a los datos de ejecuci\u00f3n pueden leer los valores de encabezado y las credenciales expuestos que persisten en la base de datos y pueden ser exportados."}], "lastModified": "2026-10-29T19:17:25.990", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:n8n:n8n:*:*:*:*:community:node.js:*:*", "vulnerable": true, "matchCriteriaId": "843094AD-81C8-4961-A8A1-037468DEACA7", "versionEndExcluding": "1.123.64"}, {"criteria": "cpe:2.3:a:n8n:n8n:*:*:*:*:enterprise:node.js:*:*", "vulnerable": true, "matchCriteriaId": "E1626500-EC42-4BF5-8ECE-6E5E249D37F6", "versionEndExcluding": "1.123.64"}, {"criteria": "cpe:2.3:a:n8n:n8n:*:*:*:*:community:node.js:*:*", "vulnerable": true, "matchCriteriaId": "3281592C-CB07-412C-9770-3521447ADEC1", "versionEndExcluding": "2.29.8", "versionStartIncluding": "2.0.0"}, {"criteria": "cpe:2.3:a:n8n:n8n:*:*:*:*:enterprise:node.js:*:*", "vulnerable": true, "matchCriteriaId": "E4A0C557-F57B-4931-A857-ACC4639C030D", "versionEndExcluding": "2.29.8", "versionStartIncluding": "2.0.0"}, {"criteria": "cpe:2.3:a:n8n:n8n:2.30.0:*:*:*:community:node.js:*:*", "vulnerable": true, "matchCriteriaId": "E125F7EF-F72F-427F-82DE-D6A505B1DF8F"}, {"criteria": "cpe:2.3:a:n8n:n8n:2.30.0:*:*:*:enterprise:node.js:*:*", "vulnerable": true, "matchCriteriaId": "3C2780A0-55EC-488D-9149-EE83BA246A38"}], "operator": "OR"}]}], "sourceIdentifier": "disclosure@vulncheck.com"}