---
id: CVE-2026-54307
title: 'n8n: Credential Exfiltration via Permission Bypass'
summary: 'n8n: Credential Exfiltration via Permission Bypass'
severity: high
cvss: 9.6
cwe:
  - CWE-863
vendor: n8n
product: n8n
ecosystem: npm
affected:
  - n8n < 1.123.55
  - 'n8n >= 2.26.0, < 2.26.2'
  - 'n8n >= 2.0.0-rc.0, < 2.25.7'
patched:
  - n8n 1.123.55
  - n8n 2.26.2
  - n8n 2.25.7
published: '2026-06-16'
updated: '2026-06-16'
source: GHSA
sourceUrl: 'https://github.com/advisories/GHSA-pmqw-72cg-wx85'
references:
  - url: 'https://github.com/n8n-io/n8n/security/advisories/GHSA-pmqw-72cg-wx85'
  - url: 'https://github.com/advisories/GHSA-pmqw-72cg-wx85'
tags:
  - ghsa
  - npm
epss: 0.00386
epssPercentile: 0.29817
ingestedAt: '2026-06-29T14:31:47.471Z'
---

## Overview

## Impact
A member-level user with editor access to a shared workflow could reference credentials they do not own via specific public API endpoints. Credential ownership checks were only enforced partially leading to cross-user credential access.

This issue affects instances where workflow sharing is enabled and at least one workflow has been shared with a member-level user as an Editor.

## Patches
The issue has been fixed in n8n versions 1.123.55, 2.25.7, and 2.26.2. Users should upgrade to one of these versions or later to remediate the vulnerability.

## Workarounds
If upgrading is not immediately possible, administrators should consider the following temporary mitigations:
- Restrict workflow sharing to fully trusted users only.
- Audit shared workflows for unexpected credential references or recent modifications.

These workarounds do not fully remediate the risk and should only be used as short-term mitigation measures.


**Credits:** Momen Elkhouli

## Affected packages

- `n8n < 1.123.55`
- `n8n >= 2.26.0, < 2.26.2`
- `n8n >= 2.0.0-rc.0, < 2.25.7`

## Remediation

Upgrade to a patched release:

- `n8n 1.123.55`
- `n8n 2.26.2`
- `n8n 2.25.7`