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Advisories

n8n before 2.42.6, 2.43.3 and 3.0.1 Code Execution Outside Task Runner Isolation via Deprecated Function Nodes

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Severity
high
Date
Affecting

  • n8n >= 2.43.0, < 2.43.3

  • n8n >= 0, < 2.42.6

  • n8n >= 3.0.0, < 3.0.1

CWE
  • CWE-653 Improper Isolation or Compartmentalization
CVSS
8.7
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Credit
Abraxas Labs, mfsiega
Description
n8n before 2.42.6, 2.43.x before 2.43.3, and 3.x before 3.0.1 contains a remote code execution vulnerability via deprecated Function, Function Item, and LangChain Code nodes running outside task runner isolation. Authenticated users who can create, modify, or import workflows naming these hidden node types can execute JavaScript in the n8n main process.

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