Description
n8n before 2.41.4 and 2.42.x before 2.42.1 contains an SQL injection vulnerability in version 1 of the Microsoft SQL node, which substitutes Query field expression values directly into SQL text without parameterisation. When a workflow binds untrusted input such as webhook fields to the Query field, unauthenticated external callers can execute arbitrary SQL against the connected database with the stored credential's privileges.
Published: 2026-10-14
Score: 7 High
EPSS: < 1% Very Low
KEV: No
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Remediation

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Tracking

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Advisories

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History

Thu, 15 Oct 2026 19:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 14 Oct 2026 23:00:00 +0000

Type Values Removed Values Added
Description n8n before 2.41.4 and 2.42.x before 2.42.1 contains an SQL injection vulnerability in version 1 of the Microsoft SQL node, which substitutes Query field expression values directly into SQL text without parameterisation. When a workflow binds untrusted input such as webhook fields to the Query field, unauthenticated external callers can execute arbitrary SQL against the connected database with the stored credential's privileges.
Title n8n before 2.41.4 and 2.42.1 SQL Injection via Microsoft SQL Node Query Field
First Time appeared N8n
N8n n8n
Weaknesses CWE-89
CPEs cpe:2.3:a:n8n:n8n:*:*:*:*:*:*:*:*
Vendors & Products N8n
N8n n8n
References
Metrics cvssV4_0

{'score': 7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:H/SI:H/SA:L'}


cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-10-15T18:18:14.437Z

Reserved: 2026-10-14T22:12:22.054Z

Link: CVE-2026-110840

cve-icon Vulnrichment

Updated: 2026-10-15T18:18:10.723Z

cve-icon NVD

Status : Deferred

Published: 2026-10-14T23:17:24.320

Modified: 2026-10-15T19:17:23.960

Link: CVE-2026-110840

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-15T12:15:06Z

Weaknesses