CVE-2026-42233: n8n

Critical severity, CVSS 9.8. EPSS: 0.5% chance of exploitation in the next 30 days.

n8n is an open source workflow automation platform. Prior to versions 1.123.32, 2.17.4, and 2.18.1, a flaw in the Oracle Database node's select operation allowed user-controlled input passed into the Limit field via expressions to be interpolated directly into the SQL query without sanitization or parameterization. In workflows where external input is passed into the Limit field (e.g., from a webhook), an attacker could inject arbitrary SQL and exfiltrate data from the connected Oracle database. This issue has been patched in versions 1.123.32, 2.17.4, and 2.18.1.

Affected products

• n8n n8n: before 1.123.32 (fixed in 1.123.32); from 2.17.0, before 2.17.4 (fixed in 2.17.4); version 2.18.0 only

Published 2026-05-04. Last modified 2026-06-17.