Vulnerability · Published May 4, 2026 · Assigned by GitHub_M
CVE-2026-42233n8n: SQL Injection in Oracle Database Node via Limit Field
Medium 5.3
In plain English
A medium-severity SQL injection in n8n from n8n-io. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 26% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
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 packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| npm | n8n | 1.123.32 | GHSA-r6jc-mpqw-m755 |
| npm | n8n | 2.18.1 | GHSA-r6jc-mpqw-m755 |
| npm | n8n | 2.17.4 | GHSA-r6jc-mpqw-m755 |
Affected products (as reported)
Weakness: CWE-89 · Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N
References
- https://github.com/n8n-io/n8n/security/advisories/GHSA-r6jc-mpqw-m755 x_refsource_CONFIRM