NPM: n8n: Anonymous Approval-Gate Bypass via Reused resumeToken over the Chat WebSocket

NPM: n8n: Anonymous Approval-Gate Bypass via Reused resumeToken over the Chat WebSocket vulnerability discovered by ? in WordPress Npm n8n versions 2.37.7...

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...

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 , 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-2026-86077 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: Missing Authorization

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...

Exploit for Missing Authorization in N8N

GHSA-f77h-j2v7-g6mw — n8n Unauthenticated Chat Execution Hijac...

CVE-2026-42228

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...

CVE-2026-42228 n8n: Hijacking of Unauthenticated Chat Execution

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...

CVE-2026-42228

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...