CVE-2026-110840

High

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.

SeverityHigh

CVSS7.0

Exploit probability—

ProductN8n

PublishedOct 14, 2026

First seenOct 14, 2026

Weakness typeCWE-89SQL injection

How to fix

Update

n8n-io n8n2.41.4, 2.42.1 or later

Vendor advisories

github.com/n8n-io/n8n/security/advisories/GHSA-5qpp-pqww-h7fp

Affected products

Product	Affected versions	Fixed in
n8n-io n8n	v < 2.41.4, 2.42.0 ≤ v < 2.42.1	2.41.4, 2.42.1

Check your version

Choose the product and enter the version you run to see whether it falls in the affected range.

In the Intelligence 360 plan

Attack Surface Management

See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.