CVE-2026-27497

CRITICAL EPSS 50.8%
Published Feb 25, 20264mo ago · Modified Jun 17, 20261w ago
9.4 CVSS 4.0
Critical
Find Similar
Published Feb 25, 2026 4mo ago
Last Modified Jun 17, 2026 1w ago

Description

n8n is an open source workflow automation platform. Prior to versions 2.10.1, 2.9.3, and 1.123.22, an authenticated user with permission to create or modify workflows could leverage the Merge node's SQL query mode to execute arbitrary code and write arbitrary files on the n8n server. The issues have been fixed in n8n versions 2.10.1, 2.9.3, and 1.123.22. Users should upgrade to one of these versions or later to remediate all known vulnerabilities. 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.

CVSS Details

Base Score
9.4
Exploitability
—
Impact
—
Vector string
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
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
50.8% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 2

CWE-89 SQL Injection Injection
CWE-94 Improper Control of Generation of Code (Code Injection) Injection

Affected Products 3

VendorProductVersionRange
n8nn8n* <1.123.22
n8nn8n*≥2.0.0  –  <2.9.3
n8nn8n*≥2.10.0  –  <2.10.1

References 4

  • github.com https://github.com/n8n-io/n8n/releases/tag/n8n@1.123.22
    Release Notes
  • github.com https://github.com/n8n-io/n8n/releases/tag/n8n@2.10.1
    Release Notes
  • github.com https://github.com/n8n-io/n8n/releases/tag/n8n@2.9.3
    Release Notes
  • github.com https://github.com/n8n-io/n8n/security/advisories/GHSA-wxx7-mcgf-j869
    Vendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.