CVE-2026-42237 PUBLISHED

n8n: SQL Injection in Snowflake and MySQL Nodes

Assigner: GitHub_M
Reserved: 25.04.2026 Published: 04.05.2026 Updated: 04.05.2026

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.

Metrics

CVSS 4.0

CVSS Vector: 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
CVSS Score: 5.3

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	None	Confidentiality	High
Attack Complexity	Low	Integrity	None	Integrity	High
Attack Requirements	Present	Availability	None	Availability	None
Privileges Required	Low
User Interaction	None

CVSS 4.0

Product Status

Vendor	n8n-io
Product	n8n
Versions	Version < 1.123.32 is affected Version >= 2.17.0, < 2.17.4 is affected Version >= 2.18.0, < 2.18.1 is affected

References

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

Problem Types

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