CVE-2026-42237

n8n: SQL Injection in Snowflake and MySQL Nodes

State: Published
Severity: 5.3 Medium
Published: May 4, 2026
Updated: May 4, 2026
Reserved: Apr 25, 2026

Description

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.

Scores

CVSS	Score	Vector	Source
4.0	5.3 Medium	CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N	GitHub_M

Weaknesses

CWE-89 Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

Affected Products

Product	Versions
n8nn8n-io	< 1.123.32Affected >= 2.17.0, < 2.17.4Affected >= 2.18.0, < 2.18.1Affected

References

https://github.com/n8n-io/n8n/security/advisories/GHSA-hp3c-vfpm-q4f7

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