PT-2026-44914 · Npm · N8N
Published
2026-05-19
·
Updated
2026-05-19
CVSS v3.1
6.4
Medium
| Vector | AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N |
Impact
The
ExecuteWorkflow node's localFile source option read workflow files from disk without applying checks enforced by other file-reading nodes. An authenticated user with permission to create or modify workflows could supply an arbitrary file path via the REST API, bypassing the N8N RESTRICT FILE ACCESS TO restriction. This allowed the attacker to determine whether arbitrary files exist on the server host. Where the targeted path contained a valid workflow JSON file, the file could additionally be loaded and executed, potentially triggering actions on downstream systems connected to that workflow.The
localFile source option is hidden from the n8n UI since v1.2 but remains accessible via the REST API.Patches
The issue has been fixed in n8n version 2.20.0 or 2.19.3. 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:
- Restrict workflow creation and editing permissions to fully trusted users only.
- Restrict network access to the n8n REST API to trusted users only.
These workarounds do not fully remediate the risk and should only be used as short-term mitigation measures.
Fix
Path traversal
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Weakness Enumeration
Related Identifiers
Affected Products
N8N