Advisories

n8n before 1.123.89 RCE via Workflow Expression Evaluation Sandbox Escape

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Severity
high
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-94 Improper Control of Generation of Code ('Code Injection')
CVSS
7.7
CVSS V4 Vector
CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Credit
NumberOreo1, 0xNasu
Description
n8n before 1.123.89 contains an insufficient isolation vulnerability in workflow expression evaluation that allows authenticated users to escape the sandbox. Attackers with permission to create or modify workflows can craft expressions referencing unexpected JavaScript properties to execute arbitrary code on the n8n host.

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