GHSA-35JJ-42HP-8GMQ n8n: Anonymous Approval-Gate Bypass via Reused resumeToken over the Chat WebSocket

Impact The /chat WebSocket route resumed a paused execution from a resume token without checking that the node being resumed was a chat node. n8n hands that token to anonymous form submitters, so a party with no account could present it on the chat route and release an execution waiting at an...

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...