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      <title>CVE-2026-86077 — n8n: Anonymous Approval-Gate Bypass via Reused resumeToken over the Chat WebSocket</title>
      <link>https://cve.radiocsirt.org/vuln/cve-2026-86077</link>
      <description>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; n8n-io n8n&lt;/p&gt;
&lt;p&gt;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 chat route to release a Send-and-Wait, non-chat HITL, or Wait approval gate. The affected authorization logic is packages/cli/src/chat/chat-execution-manager.ts, where canResumeOverChat did not gate the resume target. This issue is fixed in versions 2.37.7 and 2.38.2.&lt;/p&gt;</description>
      <content:encoded>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; n8n-io n8n&lt;/p&gt;
&lt;p&gt;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 chat route to release a Send-and-Wait, non-chat HITL, or Wait approval gate. The affected authorization logic is packages/cli/src/chat/chat-execution-manager.ts, where canResumeOverChat did not gate the resume target. This issue is fixed in versions 2.37.7 and 2.38.2.&lt;/p&gt;</content:encoded>
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