High severity · published Oct 14, 2026
CVE-2026-110840
n8n before 2.41.4 and 2.42.1 SQL Injection via Microsoft SQL Node Query Field
7.0
CVSS
0.3%
EPSS
No
On KEV
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.
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 22% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
N8
n8n · n8n-io
before 2.41.4; 2.42.0 before 2.42.1 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-110840
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-110840
github.com
https://github.com/n8n-io/n8n/security/advisories/GHSA-5qpp-pqww-h7fp
www.vulncheck.com
https://www.vulncheck.com/advisories/n8n-before-2.41.4-and-2.42.1-sql-injection-via-microsoft-sql-node-query-field
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