CVE-2026-42237: n8n

High severity, CVSS 8.8. EPSS: 0.4% chance of exploitation in the next 30 days.

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.

Affected products

• n8n n8n: before 1.123.32 (fixed in 1.123.32); from 2.17.0, before 2.17.4 (fixed in 2.17.4); version 2.18.0 only

Published 2026-05-04. Last modified 2026-06-17.