---
title: "CVE-2026-110853: n8n - Authorization Bypass"
description: "n8n < 1.123.83 contains an authorization bypass caused by trusted identifier spoofing in Execute Sub-workflow inline JSON mode, letting authenticated members access and modify workflows they do not belong to, exploit requires authentication."
url: https://panop.io/threat-heartbeat/CVE-2026-110853/
---

# CVE-2026-110853 n8n - Authorization Bypass

n8n < 1.123.83 contains an authorization bypass caused by trusted identifier spoofing in Execute Sub-workflow inline JSON mode, letting authenticated members access and modify workflows they do not belong to, exploit requires authentication.

CVSS base score 7.1 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Required

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-110853)

## Details

Type

Authorization Bypass

Impact

Broken Access Control, Data Tampering

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:L/VA:N/SC:H/SI:L/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-639](https://cwe.mitre.org/data/definitions/639.html)

## Vendor fix

Update to version 1.123.83 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-2026-110853](https://nvd.nist.gov/vuln/detail/CVE-2026-110853)
- [https://github.com/n8n-io/n8n/security/advisories/GHSA-866p-xg8v-g2q7](https://github.com/n8n-io/n8n/security/advisories/GHSA-866p-xg8v-g2q7)
- [https://www.vulncheck.com/advisories/n8n-before-1.123.83-authorization-bypass-via-execute-sub-workflow-inline-json](https://www.vulncheck.com/advisories/n8n-before-1.123.83-authorization-bypass-via-execute-sub-workflow-inline-json)

[← All CVEs](https://panop.io/threat-heartbeat/)

## 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

Panop answers these inside your environment, for this CVE and every other finding.

[Book a demo](https://panop.io/demo)