PT-2026-103784 · N8N Io · N8N

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CVE-2026-103251

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Published

2026-10-01

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Updated

2026-10-01

CVSS v3.1

7.1

High

VectorAV:A/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
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.

Fix

Missing Authorization

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Weakness Enumeration

Related Identifiers

CVE-2026-103251

Affected Products

N8N