---
id: CVE-2026-86073
title: n8n is an open source workflow automation platform
summary: >-
  n8n is an open source workflow automation platform. Prior to 2.37.7 and
  2.38.1, the OAuth token endpoint bound an authorization code's first access
  token to the consented resource but did not bind its refresh token. Refreshing
  checked on…
severity: high
cvss: 7.6
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:L'
cwe:
  - CWE-863
vendor: n8n
product: n8n
affected:
  - n8n < 2.37.7
  - n8n = 2.38.0
patched:
  - n8n 2.37.7
published: '2026-09-08'
updated: '2026-09-11'
sourceUpdated: '2026-09-11T18:07:39.963'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-86073'
references:
  - url: >-
      https://github.com/n8n-io/n8n/commit/18458482861097a26f874f30ad7e8136e268475c
    label: security-advisories@github.com
  - url: >-
      https://github.com/n8n-io/n8n/commit/380788fd9a3264c83161e868026a98731d274d88
    label: security-advisories@github.com
  - url: 'https://github.com/n8n-io/n8n/pull/37122'
    label: security-advisories@github.com
  - url: 'https://github.com/n8n-io/n8n/pull/37588'
    label: security-advisories@github.com
  - url: 'https://github.com/n8n-io/n8n/releases/tag/n8n@2.37.7'
    label: security-advisories@github.com
  - url: 'https://github.com/n8n-io/n8n/releases/tag/n8n@2.38.1'
    label: security-advisories@github.com
  - url: 'https://github.com/n8n-io/n8n/security/advisories/GHSA-cw9w-vv67-hf73'
    label: security-advisories@github.com
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-86073'
  - url: 'https://github.com/advisories/GHSA-cw9w-vv67-hf73'
tags:
  - nvd
  - cve.org
  - ghsa
  - npm
epss: 0.0039
epssPercentile: 0.30425
aliases:
  - GHSA-cw9w-vv67-hf73
ecosystem: npm
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-09T15:58:32.122740Z'
scores:
  nvd: 7.6
  cna: 5.9
ingestedAt: '2026-09-08T19:08:49.672Z'
---

## Overview

n8n is an open source workflow automation platform. Prior to 2.37.7 and 2.38.1, the OAuth token endpoint bound an authorization code's first access token to the consented resource but did not bind its refresh token. Refreshing checked only that the requested resource was registered, not that it matched the original grant. An OAuth client approved for one workflow could substitute a different workflow URL in the resource parameter and obtain a valid token for an unapproved workflow accessible to the consenting user. This issue is fixed in versions 2.37.7 and 2.38.1.

## Affected

- `n8n < 2.37.7`
- `n8n = 2.38.0`

## Remediation

Upgrade past the affected range:

- `n8n 2.37.7`

## Package advisory (CVE-2026-86073)

Affected packages:

- `n8n >= 2.38.0, < 2.38.1`
- `n8n < 2.37.7`

Patched in:

- `n8n 2.38.1`
- `n8n 2.37.7`

Source: https://github.com/advisories/GHSA-cw9w-vv67-hf73