PT-2026-50173 · Npm · N8N

Publicado 2026-06-16 · Atualizado 2026-06-16 · CVE-2026-54307

OSV

CVSS v3.1

9.6

Crítica

Vetor base

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

Impact

A member-level user with editor access to a shared workflow could reference credentials they do not own via specific public API endpoints. Credential ownership checks were only enforced partially leading to cross-user credential access.

This issue affects instances where workflow sharing is enabled and at least one workflow has been shared with a member-level user as an Editor.

Patches

The issue has been fixed in n8n versions 1.123.55, 2.25.7, and 2.26.2. Users should upgrade to one of these versions or later to remediate the vulnerability.

Workarounds

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

• Restrict workflow sharing to fully trusted users only.
• Audit shared workflows for unexpected credential references or recent modifications.

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

Credits: Momen Elkhouli

Correção

Incorrect Authorization

Enumeração de Fraquezas

CWE-863

Identificadores relacionados

CVE-2026-54307

GHSA-PMQW-72CG-WX85

Produtos afetados

N8N

Referências · 3

• https://github.com/n8n-io/n8n/security/advisories/GHSA-pmqw-72cg-wx85 · Nota
• https://github.com/n8n-io/n8n · Nota
• https://osv.dev/vulnerability/GHSA-pmqw-72cg-wx85 · Aviso do Fabricante