Description

n8n is an open source workflow automation platform. Prior to versions 1.123.32, 2.17.4, and 2.18.1, the /chat WebSocket endpoint used by the Chat Trigger node's Hosted Chat feature did not verify that an incoming connection was authorized to interact with the target execution. An unauthenticated remote attacker who could identify a valid execution ID for a workflow in a waiting state could attach to that execution, receive the pending prompt intended for the legitimate user, and submit arbitrary input to resume or influence downstream workflow behavior. This issue has been patched in versions 1.123.32, 2.17.4, and 2.18.1.

INFO

Published Date :

2026-05-04T18:27:06.649Z

Last Modified :

2026-05-06T13:47:56.890Z

Source :

GitHub_M
AFFECTED PRODUCTS

The following products are affected by CVE-2026-42228 vulnerability.

Vendors Products
N8n
  • N8n
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-42228.

URL Resource
https://github.com/n8n-io/n8n/security/advisories/GHSA-f77h-j2v7-g6mw cve-icon cve-icon
Login to claim this CVE

CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Attack Requirements
Privileges Required
User Interaction
VS Confidentiality
VS Integrity
VS Availability
SS Confidentiality
SS Integrity
SS Availability
Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact