PT-2026-6438 · Npm · N8N

Publicado 2026-02-04 · Atualizado 2026-02-04

OSV

CVSS v4.0

9.4

Crítica

Vetor base

AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

Impact

A vulnerability in the Merge node's SQL Query mode allowed authenticated users with permission to create or modify workflows to write arbitrary files to the n8n server's filesystem potentially leading to remote code execution.

Patches

The issue has been fixed in n8n version 2.4.0, 1.118.0. Users should upgrade to this version or later to remediate the vulnerability.

Workarounds

If upgrading is not immediately possible, administrators should consider the following temporary mitigations:

• Limit workflow creation and editing permissions to fully trusted users only.
• Disable or restrict use of the Merge node if not essential for operations.
• Review workflows for suspicious use of the Merge node's SQL Query mode.

These workarounds do not fully remediate the risk and should only be used as short-term mitigation measures.

Resources

• n8n Documentation — Blocking nodes — how to globally disable specific nodes

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n8n has adopted CVSS 4.0 as primary score for all security advisories. CVSS 3.1 vector strings are provided for backwards compatibility.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Correção

Unrestricted File Upload

Protection Mechanism Failure

Enumeração de Fraquezas

CWE-434

CWE-693

Identificadores relacionados

GHSA-HV53-3329-VMRM

Produtos afetados

N8N

Referências · 4

• https://github.com/n8n-io/n8n · Nota
• https://github.com/n8n-io/n8n/security/advisories/GHSA-hv53-3329-vmrm · Nota
• https://osv.dev/vulnerability/GHSA-hv53-3329-vmrm · Aviso do Fabricante
• https://nvd.nist.gov/vuln/detail/CVE-2026-25056 · Nota de Segurança