---
id: GHSA-mwq7-vcmc-cm4q
title: >-
  Duplicate Advisory: SSO Instance-Role Provisioning Allows Privilege Escalation
  to Instance Owner
summary: >-
  Duplicate Advisory: SSO Instance-Role Provisioning Allows Privilege Escalation
  to Instance Owner
severity: high
cwe:
  - CWE-639
vendor: n8n
product: n8n
ecosystem: npm
affected:
  - n8n < 1.123.64
published: '2026-07-22'
updated: '2026-07-22'
source: GHSA
sourceUrl: 'https://github.com/advisories/GHSA-mwq7-vcmc-cm4q'
references:
  - url: 'https://github.com/n8n-io/n8n/security/advisories/GHSA-35q8-9mj6-wjmf'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-65016'
  - url: >-
      https://www.vulncheck.com/advisories/n8n-before-privilege-escalation-via-sso-instance-role
  - url: 'https://github.com/advisories/GHSA-mwq7-vcmc-cm4q'
tags:
  - ghsa
  - npm
ingestedAt: '2026-07-22T22:06:58.137Z'
---

## Overview

## Duplicate Advisory

This advisory has been withdrawn because it is a duplicate of GHSA-35q8-9mj6-wjmf. This link is maintained to preserve external references.

## Original Description
n8n versions before 1.123.64, 2.29.8, and 2.30.1 contain a privilege escalation vulnerability in Enterprise SSO instance-role provisioning. The provisioning path maps an IdP-asserted role claim to an n8n global role but does not prevent assignment of the global:owner role (unlike the token-exchange identity path, which rejects it). An SSO-authenticated user whose instance-role claim resolves to global:owner is provisioned as instance owner, gaining full administrative control over workflows, credentials, users, and instance configuration. Exploitation requires that Enterprise SSO is configured, instance-role provisioning is enabled via N8N_SSO_SCOPES_PROVISION_INSTANCE_ROLE (disabled by default), and the attacker controls the instance-role claim value issued by the IdP.

## Affected packages

- `n8n < 1.123.64`

## Remediation

Refer to the advisory for the patched release.