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-16353435
- published3 May 2026
- disclosed29 Apr 2026
- creditpawbednarz
Introduced: 29 Apr 2026
NewCVE-2026-42233 (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 Limit field in the Oracle Database node when user-controlled input is passed through expressions without proper sanitization or parameterization. An attacker can execute arbitrary SQL commands and exfiltrate data from the connected Oracle database by injecting malicious input into the Limit field.
Note: This is only exploitable if the Oracle Database node is configured to accept external input into the Limit field, such as from a webhook, and the workflow allows unauthenticated or untrusted access.
Workaround
This vulnerability can be mitigated by limiting workflow creation and editing permissions to fully trusted users, disabling the Oracle Database node by adding n8n-nodes-base.oracleDatabase to the NODES_EXCLUDE environment variable, or avoiding unvalidated external user input in the Limit field when using expressions.