CVE-2026-72763
n8n before 1.123.67 Credential Exfiltration via Sub-Workflow
Description
n8n before 1.123.67, 2.31.5, and 2.32.1 validates credential-access only for a node's top-level credentials and not for credentials referenced inside an Execute Sub-workflow node's inline workflow JSON. A member with Editor access to a shared workflow (when workflow sharing is enabled) who knows a target credential's ID can reference that credential in the inline JSON; it passes save-time and runtime validation and resolves in the parent workflow's project context, allowing the attacker to use or exfiltrate credentials they are not permitted to access.
INFO
Published Date :
Aug. 11, 2026, 1:19 p.m.
Last Modified :
Oct. 24, 2026, 3:10 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 | HIGH | 83251b91-4cc7-4094-a5c7-464a1b83ea10 | ||||
| CVSS 4.0 | HIGH | [email protected] |
Solution
- Update n8n to version 1.123.67 or later.
- Review credential access controls and permissions.
- Restrict Editor access to shared workflows.
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-2026-72763.
| URL | Resource |
|---|---|
| https://github.com/n8n-io/n8n/security/advisories/GHSA-cj9h-qx8g-pq2g | Mitigation Vendor Advisory |
| https://www.vulncheck.com/advisories/n8n-before-credential-exfiltration-via-sub-workflow | 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-2026-72763 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-2026-72763
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-2026-72763 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-72763 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.
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CVE Translated by [email protected]
Oct. 24, 2026
Action Type Old Value New Value Changed Translation Title: n8n de n8n-io, Description: n8n antes de 1.123.67, 2.31.5 y 2.32.1 valida el acceso a credenciales solo para las credenciales de nivel superior de un nodo y no para las credenciales referenciadas dentro del JSON de flujo de trabajo en línea de un nodo Execute Sub-workflow. Un miembro con acceso de Editor a un flujo de trabajo compartido (cuando el uso compartido de flujos de trabajo está habilitado) que conoce el ID de una credencial objetivo puede referenciar esa credencial en el JSON en línea; pasa la validación en tiempo de guardado y en tiempo de ejecución y se resuelve en el contexto del proyecto del flujo de trabajo padre, permitiendo al atacante usar o exfiltrar credenciales a las que no tiene permiso para acceder. Title: n8n de n8n-io, Description: n8n antes de 1.123.67, 2.31.5 y 2.32.1 valida el acceso a credenciales solo para las credenciales de nivel superior de un nodo y no para las credenciales referenciadas dentro del JSON de flujo de trabajo en línea de un nodo Execute Sub-workflow. Un miembro con acceso de Editor a un flujo de trabajo compartido (cuando el uso compartido de flujos de trabajo está habilitado) que conoce el ID de una credencial objetivo puede referenciar esa credencial en el JSON en línea; pasa la validación en tiempo de guardado y en tiempo de ejecución y se resuelve en el contexto del proyecto del flujo de trabajo padre, permitiendo al atacante usar o exfiltrar credenciales a las que no tiene permiso para acceder. -
CVE Translated by [email protected]
Oct. 23, 2026
Action Type Old Value New Value Added Translation Title: n8n de n8n-io, Description: n8n antes de 1.123.67, 2.31.5 y 2.32.1 valida el acceso a credenciales solo para las credenciales de nivel superior de un nodo y no para las credenciales referenciadas dentro del JSON de flujo de trabajo en línea de un nodo Execute Sub-workflow. Un miembro con acceso de Editor a un flujo de trabajo compartido (cuando el uso compartido de flujos de trabajo está habilitado) que conoce el ID de una credencial objetivo puede referenciar esa credencial en el JSON en línea; pasa la validación en tiempo de guardado y en tiempo de ejecución y se resuelve en el contexto del proyecto del flujo de trabajo padre, permitiendo al atacante usar o exfiltrar credenciales a las que no tiene permiso para acceder. -
Reanalysis by [email protected]
Sep. 01, 2026
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:a:n8n:n8n:*:*:*:*:*:node.js:*:* versions up to (excluding) 1.123.67 *cpe:2.3:a:n8n:n8n:*:*:*:*:*:node.js:*:* versions from (including) 2.31.0 up to (excluding) 2.31.5 *cpe:2.3:a:n8n:n8n:*:*:*:*:*:node.js:*:* versions from (including) 2.32.0 up to (excluding) 2.32.1 OR *cpe:2.3:a:n8n:n8n:*:*:*:*:*:node.js:*:* versions up to (excluding) 1.123.67 *cpe:2.3:a:n8n:n8n:*:*:*:*:*:node.js:*:* versions from (including) 2.31.0 up to (excluding) 2.31.5 *cpe:2.3:a:n8n:n8n:2.32.0:*:*:*:*:node.js:*:* -
Initial Analysis by [email protected]
Sep. 01, 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:*:*:*:*:*:node.js:*:* versions up to (excluding) 1.123.67 *cpe:2.3:a:n8n:n8n:*:*:*:*:*:node.js:*:* versions from (including) 2.31.0 up to (excluding) 2.31.5 *cpe:2.3:a:n8n:n8n:*:*:*:*:*:node.js:*:* versions from (including) 2.32.0 up to (excluding) 2.32.1 Added Reference Type VulnCheck: https://github.com/n8n-io/n8n/security/advisories/GHSA-cj9h-qx8g-pq2g Types: Mitigation, Vendor Advisory Added Reference Type VulnCheck: https://www.vulncheck.com/advisories/n8n-before-credential-exfiltration-via-sub-workflow Types: Third Party Advisory -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Aug. 11, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-72763', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-08-11T18:00:55.830903Z'} -
New CVE Received by [email protected]
Aug. 11, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'n8n-io', 'product': 'n8n', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '1.123.67', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '1.123.67', 'versionType': 'semver'}], 'packageURL': 'pkg:npm/n8n', 'defaultStatus': 'unaffected'}, {'vendor': 'n8n-io', 'product': 'n8n', 'versions': [{'status': 'affected', 'version': '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'}] Added Description n8n before 1.123.67, 2.31.5, and 2.32.1 validates credential-access only for a node's top-level credentials and not for credentials referenced inside an Execute Sub-workflow node's inline workflow JSON. A member with Editor access to a shared workflow (when workflow sharing is enabled) who knows a target credential's ID can reference that credential in the inline JSON; it passes save-time and runtime validation and resolves in the parent workflow's project context, allowing the attacker to use or exfiltrate credentials they are not permitted to access. Added CVSS V4.0 AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/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 Added CWE CWE-639 Added Reference https://github.com/n8n-io/n8n/security/advisories/GHSA-cj9h-qx8g-pq2g Added Reference https://www.vulncheck.com/advisories/n8n-before-credential-exfiltration-via-sub-workflow