---
id: CVE-2026-56778
title: n8n - Authorization Bypass in Public API Execution Retry Endpoint
summary: >-
  n8n before 2.25.7 and 2.26.x before 2.26.2 contains an authorization bypass in
  the Public API execution retry endpoint, which authorizes access using the
  workflow:read scope instead of workflow:execute. An authenticated user with
  read-on…
severity: medium
cvss: 6.4
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N'
cvssSource: cna
cwe:
  - CWE-863
vendor: n8n
product: n8n
affected:
  - n8n >= 2.26.0 < 2.26.2
  - n8n < 2.25.7
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-07-08T14:24:00.966635Z'
published: '2026-07-08'
updated: '2026-10-29'
sourceUpdated: '2026-10-29T21:16:00.821Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-56778'
references:
  - url: 'https://github.com/n8n-io/n8n/security/advisories/GHSA-h3jj-5f3v-3685'
    label: GitHub Security Advisory (GHSA-h3jj-5f3v-3685)
  - url: >-
      https://www.vulncheck.com/advisories/n8n-authorization-bypass-in-public-api-execution-retry-endpoint
    label: >-
      VulnCheck Advisory: n8n - Authorization Bypass in Public API Execution
      Retry Endpoint
tags:
  - cve.org
epss: 0.00295
epssPercentile: 0.22239
ingestedAt: '2026-11-03T08:39:35.567Z'
---

## Overview

n8n before 2.25.7 and 2.26.x before 2.26.2 contains an authorization bypass in the Public API execution retry endpoint, which authorizes access using the workflow:read scope instead of workflow:execute. An authenticated user with read-only access to a shared workflow can use the Public API to retry executions of that workflow, bypassing the intended permission boundary between read and execute access. This affects instances where workflows are shared with other users or across projects.

## Affected

- `n8n >= 2.26.0 < 2.26.2`
- `n8n < 2.25.7`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.