CVE-2026-86077 n8n: Anonymous Approval-Gate Bypass via Reused resumeToken over the Chat WebSocket

n8n is an open source workflow automation platform. Prior to 2.37.7 and 2.38.2, the /chat WebSocket route accepted a resumeToken and resumed a paused execution without checking that the target node supported chat messages. An anonymous form submitter who received that token could reuse it on the...

CVE-2026-86077

n8n , an open-source workflow automation platform, contained an authorization flaw in the /chat WebSocket route (specifically the canResumeOverChat function in chat-execution-manager.ts). Prior to versions 2.37.7 and 2.38.2 , a resumeToken issued to an anonymous form submitter could be replayed o...

CVE-2026-27578

n8n is an open source workflow automation platform. Prior to versions 2.10.1, 2.9.3, and 1.123.22, an authenticated user with permission to create or modify workflows could inject arbitrary scripts into pages rendered by the n8n application using different techniques on various nodes Form Trigger...

CVE-2026-27578 n8n Vulnerable to Stored XSS via Various Nodes

n8n is an open source workflow automation platform. Prior to versions 2.10.1, 2.9.3, and 1.123.22, an authenticated user with permission to create or modify workflows could inject arbitrary scripts into pages rendered by the n8n application using different techniques on various nodes Form Trigger...

CVE-2026-27578

Summary of CVE-2026-27578 (n8n): An authenticated user with permission to create or modify workflows could inject arbitrary scripts into pages rendered by n8n across multiple nodes (Form Trigger, Chat Trigger, Send & Wait, Webhook, Chat Node). This leads to client-side script execution in other u...

Cross-site Scripting (XSS)

Overview @n8n/n8n-nodes-langchain is a Affected versions of this package are vulnerable to Cross-site Scripting XSS via the workflow creation and editing process in various nodes, including Form Trigger, Chat Trigger, Send & Wait, Webhook, and Chat nodes. An attacker can execute arbitrary scripts...

GHSA-2P9H-RQJW-GM92 n8n Vulnerable to Stored XSS via Various Nodes

Impact An authenticated user with permission to create or modify workflows could inject arbitrary scripts into pages rendered by the n8n application using different techniques on various nodes Form Trigger node, Chat Trigger node, Send & Wait node, Webhook Node, and Chat Node. Scripts injected by...