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CVE-2026-42237: n8n vulnerability
CVE-2026-42237: medium vulnerability affecting n8n. Check CVSS, KEV status, business impact and recommended administrator actions.
- CVSS
- 5.3 MEDIUM
- EPSS
- 16.88%
- Known exploited
- not in KEV
- Product
- n8n
What is known
n8n is an open source workflow automation platform. Prior to versions 1.123.32, 2.17.4, and 2.18.1, the fix for GHSA-f3f2-mcxc-pwjx did not cover the Snowflake node or the legacy MySQL v1 node. Both nodes construct SQL queries by directly interpolating user-controlled table names, column names, and update keys into query strings without identifier escaping, enabling SQL injection against the connected database. This issue has been patched in versions 1.123.32, 2.17.4, and 2.18.1.
Business impact
Successful exploitation of CVE-2026-42237, a medium vulnerability (CVSS 5.3) affecting n8n, may affect the confidentiality, integrity or availability of the vulnerable environment. The exact impact depends on the installed version, exposed interfaces and deployment configuration.
Recommended administrator action
Confirm whether n8n is present and compare installed versions with the vendor advisory and NVD record. Apply the vendor patch or documented mitigation; until remediation is complete, reduce exposure of affected interfaces, review relevant logs and monitor for indicators of exploitation. DataHouse can support version verification, managed patching, network exposure reduction, log review and backup validation for dedicated, cloud and colocated environments.