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Advisories

n8n before 1.123.89 Authentication Bypass via Chat Trigger Embedded Chat

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Severity
medium
Date
Affecting

  • n8n >= 0, < 1.123.89

  • n8n >= 2.46.0, < 2.46.1

  • n8n >= 2.0.0, < 2.45.5

  • n8n >= 3.0.0, < 3.0.1

CWE
  • CWE-288 Authentication Bypass Using an Alternate Path or Channel
CVSS
6.3
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:L/SA:N
Credit
Masofgon
Description
n8n before 1.123.89 contains an authentication bypass vulnerability in the Chat Trigger that allows unauthenticated attackers to skip n8n User Auth through the setup GET webhook route in embedded chat mode. Attackers can send unauthenticated GET requests to the chat webhook URL to read named session conversation history or trigger workflows with attacker-supplied input.

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