Advisories

n8n before 2.41.4 and 2.42.1 Credential Check Bypass via Agent Node Parameters

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Severity
high
Date
Affecting
  • n8n >= 0, < 2.41.4

  • n8n >= 2.42.0, < 2.42.1

CWE
  • CWE-863 Incorrect Authorization
CVSS
7.2
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:L/VA:N/SC:H/SI:H/SA:L
Credit
sm1ee
Description
n8n before 2.41.4 and 2.42.0 before 2.42.1 does not validate credential ids stored in agent node parameters when an editor saves a shared workflow, because the check inspects only a node's credentials field. An editor can configure a Message an Agent node in inline mode with tools they control to resolve the owner's credentials and send decrypted secrets to an attacker-chosen destination.

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