Incorrect Authorization Affecting n8n package, versions <2.35.4-r0


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.21% (12th percentile)

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  • Snyk IDSNYK-MINIMOSLATEST-N8N-19687919
  • published12 Sept 2026
  • disclosed3 Sept 2026

Introduced: 3 Sep 2026

NewCVE-2026-85166  (opens in a new tab)
CWE-863  (opens in a new tab)

How to fix?

Upgrade Minimos:latest n8n to version 2.35.4-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream n8n package and not the n8n package as distributed by Minimos. See How to fix? for Minimos:latest relevant fixed versions and status.

n8n before 2.35.4 and 2.36.x before 2.36.2 does not validate credential references in the inline workflow JSON of nodes that execute an inline sub-workflow (e.g., the Workflow Tool node). A shared-workflow editor, or any user creating/updating a workflow via the REST API, Public API, or MCP, can persist a node referencing a credential they do not own. When the workflow is later executed under an identity that holds the credential, the inline sub-workflow resolves the secret and can send it to an attacker-controlled endpoint, resulting in credential exfiltration.

CVSS Base Scores

version 3.1