SQL Injection Affecting n8n-nodes-base package, versions <1.121.23>=2.0.0-rc.0 <2.17.2>=2.18.0 <2.18.1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-JS-N8NNODESBASE-16353561
- published3 May 2026
- disclosed29 Apr 2026
- creditUnknown
Introduced: 29 Apr 2026
NewCVE-2026-42237 (opens in a new tab)How to fix?
Upgrade n8n-nodes-base to version 1.121.23, 2.17.2, 2.18.1 or higher.
Overview
n8n-nodes-base is a Base nodes of n8n
Affected versions of this package are vulnerable to SQL Injection via the process of constructing SQL queries in the Snowflake and legacy MySQL v1 nodes when user-controlled input is directly interpolated into identifier fields such as table name, column name, or update key without proper escaping. An attacker can exfiltrate, modify, or delete data on the connected database by supplying crafted input through workflow expressions.
Workaround
This vulnerability can be mitigated by limiting workflow creation and editing permissions to fully trusted users, migrating workflows from the legacy MySQL v1 node to the MySQL v2 node, disabling the Snowflake node by adding n8n-nodes-base.snowflake to the NODES_EXCLUDE environment variable, and avoiding the use of unvalidated external input in table name, column name, or update key fields in the affected nodes.