SQL injection in n8n - #VU127224
Published: April 23, 2026
Vulnerability identifier: #VU127224
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: N/A
CWE-ID: CWE-89
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: n8n
Affected software:
n8n
n8n
Detailed vulnerability description
The vulnerability allows a remote user to disclose sensitive information.
The vulnerability exists due to improper input validation in the Oracle Database node Limit field when processing user-controlled expressions in the select operation. A remote user can supply a specially crafted expression value to disclose sensitive information.
Exploitation requires a workflow configuration in which external input is passed into the Limit field, such as through a webhook.
Remediation
Install security update from vendor's website.