How broadly exploitable is this vulnerability?

Exploitability depends on how workflows are designed. If untrusted input (such as webhooks, forms, or external APIs) is used to populate the Snowflake or legacy MySQL v1 node parameters controlling table or column names, an attacker could craft input that results in SQL injection. In closed, admin-only workflows with strictly controlled parameters, the risk is reduced.

What kind of access does an attacker need to exploit this?

At minimum, an attacker must be able to influence the values used for table names, column names, or update keys in the affected nodes. This could be via direct access to n8n (e.g., a compromised or malicious workflow editor) or indirect access through endpoints and integrations that feed data into these nodes.

What is the safest general fix pattern?

The safest pattern is to avoid constructing SQL with string concatenation. Instead, use parameterized queries for values, restrict identifiers to a predefined set, and ensure any remaining dynamic identifiers are properly validated and quoted using database-specific escaping utilities. Encapsulating database access behind reusable, vetted helper functions also reduces the chance of insecure query construction.

Severity:

HIGH RISK

(8.8)

SQL Injection (CWE-89) in n8n Snowflake and Legacy MySQL v1 Nodes

CVE-2026-42237

Published:

May 4, 2026

Status:

Analyzed

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

NDV

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Vulnerability Type

Category:

SQL Injection

CWE:

CWE-89

Impact:

SQL Injection leading to data exfiltration, modification, or potential remote compromise through the connected database

Severity:

HIGH RISK

(8.8)

CVSS Version:

3.1

Vulnerability Type

Category:

SQL Injection

CWE:

CWE-89

Impact:

SQL Injection leading to data exfiltration, modification, or potential remote compromise through the connected database

Severity:

HIGH RISK

(8.8)

CVSS Version:

3.1

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SQL Injection (CWE-89) in n8n Snowflake and Legacy MySQL v1 Nodes

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

Recent Vulnerabilities

HIGH RISK

HIGH

(8.6)

Server-Side Request Forgery (CWE-918) in OpenClaw Zalo Plugin sendPhoto

HIGH RISK

HIGH

(8.8)

Authorization Bypass (CWE-863) in OpenClaw Matrix Room Control Commands

Vulnerability Type

Vulnerability Type

Vulnerability Type

Catch This CVE While Code Is Being Written

Ship clean & secure code faster

Ship clean & secure code faster

Ship clean & secure code faster

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