CVE-2026-72750
Received Received - Intake

SQL Injection in n8n Workflow Automation Tool

Publication date: 2026-08-11

Last updated on: 2026-08-11

Assigner: VulnCheck

Description
n8n before 1.123.67, 2.31.5, and 2.32.1 contains a SQL injection vulnerability in the Snowflake node's Execute Query operation, which interpolates expression values directly into the SQL string. When a workflow author embeds untrusted, externally-controlled expression data directly in a raw SQL query, that data is not parameterized, allowing SQL injection. The fix adds an optional 'Query Parameters' field to bind values via positional placeholders.

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Meta Information

Published
2026-08-11
Last Modified
2026-08-11
Generated
2026-08-11
AI Q&A
2026-08-11
EPSS Evaluated
N/A
NVD
CVE-2026-72750
EUVD
EUVD-2026-56140

Affected Vendors & Products

Showing 5 associated CPEs
Vendor Product Version / Range
n8n n8n to 1.123.67 (exc)
n8n n8n From 2.31.5 (inc)
n8n n8n From 2.32.1 (inc)
n8n n8n to 2.31.5 (exc)
n8n n8n to 2.32.1 (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 is a SQL injection flaw in n8n versions before 1.123.67, 2.31.5, and 2.32.1. It affects the Snowflake node's Execute Query operation where untrusted expression data is directly embedded into raw SQL queries without parameterization. This allows attackers to inject malicious SQL code.

Detection Guidance

To detect this vulnerability, check if your n8n instance uses the Snowflake node with Execute Query operations that embed untrusted expressions directly into raw SQL queries. Review workflows for direct interpolation of user-controlled data in SQL strings. No specific commands are provided in the context.

Impact Analysis

Attackers could exploit this to execute unauthorized SQL commands, potentially accessing, modifying, or deleting sensitive data in connected databases. Unpatched systems may allow data breaches or unauthorized access if workflows process untrusted input.

Compliance Impact

This vulnerability could lead to unauthorized data access or breaches, violating GDPR's data protection requirements or HIPAA's safeguards for protected health information. Non-compliance may result in legal penalties, fines, or reputational damage.

Mitigation Strategies

Upgrade n8n to versions 1.123.67, 2.31.5, or 2.32.1 or later. If upgrading is not immediately possible, restrict workflow permissions, audit existing workflows for vulnerable patterns, and limit network access to vulnerable endpoints. Use the new 'Query Parameters' field for parameterized queries.

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