---
title: "CVE-2026-110846: n8n - Authentication Bypass"
description: "n8n < 2.41.4 and 2.42.x < 2.42.1 contains a signature bypass caused by improper validation in the waiting-webhook endpoint, letting attackers with execution resume tokens approve others' executions and run actions as workflow owners."
url: https://panop.io/threat-heartbeat/CVE-2026-110846/
---

# CVE-2026-110846 n8n - Authentication Bypass

n8n < 2.41.4 and 2.42.x < 2.42.1 contains a signature bypass caused by improper validation in the waiting-webhook endpoint, letting attackers with execution resume tokens approve others' executions and run actions as workflow owners.

CVSS base score 7.0 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Not required

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-110846)

## Details

Type

Authentication Bypass

Impact

Remote Code Execution, Privilege Escalation

CVSS vector

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Published

14 October 2026

Updated

15 October 2026

Weakness

[CWE-180](https://cwe.mitre.org/data/definitions/180.html)

## Vendor fix

Upgrade to version 2.41.4 or 2.42.1 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-110846](https://nvd.nist.gov/vuln/detail/CVE-2026-110846)
- [https://github.com/n8n-io/n8n/security/advisories/GHSA-728h-pmr2-7cgh](https://github.com/n8n-io/n8n/security/advisories/GHSA-728h-pmr2-7cgh)
- [https://www.vulncheck.com/advisories/n8n-before-2.41.4-and-2.42.1-send-and-wait-hmac-signature-bypass-via-waiting-webhook](https://www.vulncheck.com/advisories/n8n-before-2.41.4-and-2.42.1-send-and-wait-hmac-signature-bypass-via-waiting-webhook)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

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