CVE-2026-65589
n8n before 1.123.64 Credential Exposure via LLM Node Execution Data
Description
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.
INFO
Published Date :
July 22, 2026, 12:18 p.m.
Last Modified :
Oct. 29, 2026, 7:17 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | MEDIUM | [email protected] | ||||
| CVSS 4.0 | MEDIUM | 83251b91-4cc7-4094-a5c7-464a1b83ea10 | ||||
| CVSS 4.0 | MEDIUM | [email protected] |
Solution
- Update n8n to version 1.123.64 or later.
- Verify HTTP header credentials are masked.
- Review existing execution records for exposed credentials.
- Rotate any exposed credentials immediately.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-65589.
| URL | 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 |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-65589 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-65589
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-65589 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-65589 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
Oct. 29, 2026
Action Type Old Value New Value Added Affected Affected value modified. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/65xxx/CVE-2026-65589.json">CVE-2026-65589</a> Added Reference https://github.com/n8n-io/n8n/security/advisories/GHSA-89gh-3pgc-v5h2 Added Reference https://www.vulncheck.com/advisories/n8n-before-credential-exposure-via-llm-node-execution-data Removed Reference https://github.com/n8n-io/n8n/security/advisories/GHSA-89gh-3pgc-v5h2 Removed Reference https://www.vulncheck.com/advisories/n8n-before-credential-exposure-via-llm-node-execution-data Removed Reference Type https://github.com/n8n-io/n8n/security/advisories/GHSA-89gh-3pgc-v5h2 Types: Mitigation, Vendor Advisory Removed Reference Type https://www.vulncheck.com/advisories/n8n-before-credential-exposure-via-llm-node-execution-data Types: Third Party Advisory -
CVE Translated by [email protected]
Oct. 24, 2026
Action Type Old Value New Value Added Translation Title: n8n de n8n-io, Description: 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. -
Initial Analysis by [email protected]
Jul. 27, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N Added CPE Configuration OR *cpe:2.3:a:n8n:n8n:*:*:*:*:community:node.js:*:* versions up to (excluding) 1.123.64 *cpe:2.3:a:n8n:n8n:*:*:*:*:community:node.js:*:* versions from (including) 2.0.0 up to (excluding) 2.29.8 *cpe:2.3:a:n8n:n8n:*:*:*:*:enterprise:node.js:*:* versions up to (excluding) 1.123.64 *cpe:2.3:a:n8n:n8n:*:*:*:*:enterprise:node.js:*:* versions from (including) 2.0.0 up to (excluding) 2.29.8 *cpe:2.3:a:n8n:n8n:2.30.0:*:*:*:community:node.js:*:* *cpe:2.3:a:n8n:n8n:2.30.0:*:*:*:enterprise:node.js:*:* Added Reference Type VulnCheck: https://github.com/n8n-io/n8n/security/advisories/GHSA-89gh-3pgc-v5h2 Types: Mitigation, Vendor Advisory Added Reference Type VulnCheck: https://www.vulncheck.com/advisories/n8n-before-credential-exposure-via-llm-node-execution-data Types: Third Party Advisory -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jul. 23, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-65589', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-07-23T13:52:00.547281Z'} -
New CVE Received by [email protected]
Jul. 22, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'n8n-io', 'product': 'n8n', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '1.123.64', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '1.123.64', 'versionType': 'semver'}], 'packageURL': 'pkg:npm/n8n', 'defaultStatus': 'unaffected'}, {'vendor': 'n8n-io', 'product': 'n8n', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '2.30.1', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '2.30.1', 'versionType': 'semver'}], 'packageURL': 'pkg:npm/n8n', 'defaultStatus': 'unaffected'}, {'vendor': 'n8n-io', 'product': 'n8n', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '2.29.8', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '2.29.8', 'versionType': 'semver'}], 'packageURL': 'pkg:npm/n8n', 'defaultStatus': 'unaffected'}] Added Description 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. Added CVSS V4.0 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 Added CWE CWE-532 Added Reference https://github.com/n8n-io/n8n/security/advisories/GHSA-89gh-3pgc-v5h2 Added Reference https://www.vulncheck.com/advisories/n8n-before-credential-exposure-via-llm-node-execution-data