CVE-2026-110840
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.
- Score
- CVSS 4.0 7.0 High
- Status
- Deferred - disclosure@vulncheck.com
- Published
- 2026-10-14
- Last modified
- 2026-10-15
- Weaknesses
- CWE-89
Affected products
References
- https://github.com/n8n-io/n8n/security/advisories/GHSA-5qpp-pqww-h7fp
- https://www.vulncheck.com/advisories/n8n-before-2.41.4-and-2.42.1-sql-injection-via-microsoft-sql-node-query-field
