---
id: CVE-2026-110846
title: >-
  n8n before 2.41.4 and 2.42.x before 2.42.1 contains a signature bypass in the
  waiting-webhook endpoint, which selects Send-and-Wait validation before
  normalising an alternate node reference form
summary: >-
  n8n before 2.41.4 and 2.42.x before 2.42.1 contains a signature bypass in the
  waiting-webhook endpoint, which selects Send-and-Wait validation before
  normalising an alternate node reference form. Attackers holding an execution's
  resume t…
severity: high
cwe:
  - CWE-180
published: '2026-10-14'
updated: '2026-10-14'
sourceUpdated: '2026-10-14T23:17:25.363'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-110846'
references:
  - url: 'https://github.com/n8n-io/n8n/security/advisories/GHSA-728h-pmr2-7cgh'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/n8n-before-2.41.4-and-2.42.1-send-and-wait-hmac-signature-bypass-via-waiting-webhook
    label: disclosure@vulncheck.com
tags:
  - nvd
  - cve.org
ingestedAt: '2026-10-15T00:02:07.176Z'
vendor: n8n-io
product: n8n
affected:
  - n8n < 2.41.4
  - n8n >= 2.42.0 < 2.42.1
cvss: 7
cvssVector: 'CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:H/SI:H/SA:N'
cvssSource: cna
epss: 0.00511
epssPercentile: 0.43355
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: total
  timestamp: '2026-10-20T02:22:31.435557Z'
---

## Overview

n8n before 2.41.4 and 2.42.x before 2.42.1 contains a signature bypass in the waiting-webhook endpoint, which selects Send-and-Wait validation before normalising an alternate node reference form. Attackers holding an execution's resume token can approve waiting executions meant for others, running downstream actions under the workflow owner's credentials, potentially including command execution.

## Remediation

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