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Advisories

n8n before 1.123.80, 2.39.6, and 2.40.1 Package Install Validation Bypass via PubSub

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severity
high
date
Affecting

  • n8n >= 0, < 1.123.80

  • n8n >= 2.0.0, < 2.39.6

  • n8n >= 2.40.0, < 2.40.1

CWE
  • CWE-862 Missing Authorization
CVSS
7.5
CVSS V4 Vector
CVSS:4.0/AV:A/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Credit
AyushParkara
Description
n8n versions before 1.123.80, from 2.0.0 before 2.39.6, and from 2.40.0 before 2.40.1 contain a validation bypass vulnerability in the community package installation handler for queue mode deployments. Attackers with Redis write access can bypass name validation, permission checks, checksum verification, and npm safety checks to install arbitrary npm packages across all cluster instances without authentication.

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