CVE-2026-42237

HIGH

n8n: SQL Injection in Snowflake and MySQL Nodes

Title source: cna
STIX 2.1

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.

References (1)

Core 1
Core References

Scores

CVSS v3 8.8
EPSS 0.0003
EPSS Percentile 9.6%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-89
Status published
Products (8)
n8n/n8n 2.18.0
n8n/n8n < 1.123.32
n8n-io/n8n < 1.123.32
n8n-io/n8n >= 2.17.0, < 2.17.4
n8n-io/n8n >= 2.18.0, < 2.18.1
npm/n8n 0 - 1.123.32npm
npm/n8n 2.0.0 - 2.17.4npm
npm/n8n 2.18.0 - 2.18.1npm
Published May 04, 2026
Tracked Since May 05, 2026