CVE-2026-33660

critical · 9.4

n8n is an open source workflow automation platform. Prior to versions 2.14.1, 2.13.3, and 1.123.26, an authenticated user with permission to create or modify workflows could use the Merge node's "Combine by SQL" mode to read local files on the n8n host and achieve remote code execution. The AlaSQL sandbox did not sufficiently restrict certain SQL statements, allowing an attacker to access sensitive files on the server or even compromise the instance. The issue has been fixed in n8n versions 2.14.1, 2.13.3, and 1.123.26. Users should upgrade to one of these versions or later to remediate the vulnerability. If upgrading is not immediately possible, administrators should consider the following temporary mitigations: Limit workflow creation and editing permissions to fully trusted users only, and/or disable the Merge node by adding `n8n-nodes-base.merge` to the `NODES_EXCLUDE` environment variable. These workarounds do not fully remediate the risk and should only be used as short-term mitigation measures.

9.4

CVSS

1.0%

EPSS (exploit prob.)

60th

EPSS percentile

2026-03-25

Published

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Weaknesses

CWE-94CWE-89

Affected products

Vendor	Product	Affected versions
n8n	n8n	< 1.123.27
n8n	n8n	>= 2.0.0, < 2.13.3
n8n	n8n	2.14.0

Check a specific version with /api/v1/cve/match.

References

https://github.com/n8n-io/n8n/security/advisories/GHSA-58qr-rcgv-642v

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-33660