CVE-2026-42233— n8n: SQL Injection in Oracle Database Node via Limit Field
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I. Basic Information for CVE-2026-42233
Vulnerability Information
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Vulnerability Title
n8n: SQL Injection in Oracle Database Node via Limit Field
Source: NVD (National Vulnerability Database)
Vulnerability 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.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
SQL命令中使用的特殊元素转义处理不恰当(SQL注入)
Source: NVD (National Vulnerability Database)
Vulnerability Title
n8n SQL注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
n8n是n8n开源的一个可扩展的工作流自动化工具。 n8n 1.123.32之前版本、2.17.4之前版本和2.18.1之前版本存在SQL注入漏洞，该漏洞源于Oracle Database节点的select操作中Limit字段用户控制输入直接插值至SQL查询而未进行清理或参数化，可能导致攻击者注入任意SQL并从连接的Oracle数据库窃取数据。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2026-42233
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Same Patch Batch · n8n-io · 2026-05-04 · 12 CVEs total
| CVE-2026-42232 | n8n: XML Node Prototype Pollution to RCE | |
| CVE-2026-42229 | n8n: SQL Injection in SeaTable Node | |
| CVE-2026-42228 | n8n: Hijacking of Unauthenticated Chat Execution | |
| CVE-2026-42235 | n8n: XSS via MCP OAuth client | |
| CVE-2026-42236 | n8n: Unauthenticated Denial of Service via MCP Client Registration | |
| CVE-2026-42237 | n8n: SQL Injection in Snowflake and MySQL Nodes | |
| CVE-2026-42226 | n8n: Credential Authorization Bypass in dynamic-node-parameters Allows Foreign API Key Rep | |
| CVE-2026-42230 | n8n: Open Redirect in MCP OAuth Consent Flow | |
| CVE-2026-42234 | n8n: Python Task Runner Sandbox Escape | |
| CVE-2026-42227 | n8n: Public API Variables IDOR Allows Cross-Project Secret Disclosure | |
| CVE-2026-42231 | n8n: Prototype Pollution in XML Webhook Body Parser Leads to RCE |
IV. Related Vulnerabilities
Same product: n8n
Same vendor: n8n-io
Same weakness: CWE-89
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V. Comments for CVE-2026-42233
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