CVE-2026-42237
Undergoing Analysis Undergoing Analysis - In Progress

SQL Injection in n8n Workflow Automation Platform

Publication date: 2026-05-04

Last updated on: 2026-05-06

Assigner: GitHub, Inc.

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.

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Meta Information

Published
2026-05-04
Last Modified
2026-05-06
Generated
2026-07-06
AI Q&A
2026-05-05
EPSS Evaluated
2026-07-05
NVD
CVE-2026-42237

Affected Vendors & Products

Showing 3 associated CPEs
Vendor Product Version / Range
n8n n8n to 1.123.32 (exc)
n8n n8n 2.18.0
n8n n8n From 2.17.0 (inc) to 2.17.4 (exc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-89 The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. Without sufficient removal or quoting of SQL syntax in user-controllable inputs, the generated SQL query can cause those inputs to be interpreted as SQL instead of ordinary user data.

Attack-Flow Graph

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Executive Summary

This vulnerability exists in the n8n workflow automation platform prior to versions 1.123.32, 2.17.4, and 2.18.1. Specifically, the Snowflake node and the legacy MySQL v1 node construct SQL queries by directly inserting user-controlled table names, column names, and update keys into query strings without properly escaping identifiers. This improper handling allows an attacker to perform SQL injection attacks against the connected database.

Impact Analysis

The vulnerability can allow an attacker to execute arbitrary SQL commands on the connected database by injecting malicious SQL code through user-controlled inputs. This can lead to unauthorized data access, data modification, or even deletion, potentially compromising the integrity and confidentiality of the database.

Mitigation Strategies

To mitigate this vulnerability, you should upgrade n8n to one of the patched versions: 1.123.32, 2.17.4, or 2.18.1.

These versions include fixes that properly escape identifiers in SQL queries constructed by the Snowflake node and the legacy MySQL v1 node, preventing SQL injection.

Compliance Impact

The vulnerability allows SQL injection through unescaped user-controlled inputs in certain nodes of the n8n workflow automation platform. This could potentially lead to unauthorized access or manipulation of sensitive data stored in connected databases.

Such unauthorized access or data manipulation could impact compliance with data protection standards and regulations like GDPR and HIPAA, which require safeguarding personal and sensitive information against unauthorized access and breaches.

However, the provided information does not explicitly describe the direct impact on compliance with these standards.

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