CVE-2026-103253— n8n before 1.123.80, 2.39.6, and 2.40.1 SQL Injection via Oracle Database Drop Table
Quick assessment
Affected
n8n-io n8n
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
n8n 在 1.123.80 之前的版本、2.0.0 至 2.39.6 之间的版本，以及 2.40.0 至 2.40.1 之前的版本中，存在一个 SQL 注入漏洞，该漏洞位于 Oracle Database 节点的“删除表（Drop Table）”操作中。攻击者可以在表名或模式（schema）字段中注入单引号，从而附加任意 SQL 语句，并利用该凭证所具有的权限对连接的数据库执行 DDL（数据定义语言）或 DML（数据操作语言）命令。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-103253
Vulnerability Information
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Vulnerability Title
n8n before 1.123.80, 2.39.6, and 2.40.1 SQL Injection via Oracle Database Drop Table
Source: CVE Program / CVE List V5
Vulnerability Description
n8n versions before 1.123.80, from 2.0.0 before 2.39.6, and from 2.40.0 before 2.40.1 contain an SQL injection vulnerability in the Oracle Database node's Delete Table Drop operation. Attackers can inject single quotes in the table or schema fields to append arbitrary SQL statements and execute DDL or DML commands against the connected database with the credential's privileges.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
SQL命令中使用的特殊元素转义处理不恰当(SQL注入)
Source: CVE Program / CVE List V5
Affected Products
II. Public POCs for CVE-2026-103253
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Other References for CVE-2026-103253 (2)
Same Patch Batch · n8n-io · 2026-10-01 · 16 CVEs total
| CVE-2026-103248 | 9.0 CRITICAL | n8n before 1.123.80, 2.39.6, and 2.40.1 PostgREST Filter Injection via Supabase |
| CVE-2026-103255 | 9.0 CRITICAL | n8n before 1.123.80, 2.39.6, and 2.40.1 Path Traversal and Query Injection via Supabase |
| CVE-2026-103247 | 8.5 HIGH | n8n before 1.123.80 Credential Tampering via Duplicate Node IDs |
| CVE-2026-103250 | 8.1 HIGH | n8n before 1.123.80, 2.39.6, and 2.40.1 NoSQL Injection via MongoDB Chat Memory |
| CVE-2026-103257 | 7.7 HIGH | n8n before 1.123.80, 2.39.6, and 2.40.1 Path Traversal via n8n Node |
| CVE-2026-103246 | 7.7 HIGH | n8n before 2.39.6 and 2.40.x before 2.40.1 Credential Disclosure via Node-Tool Introspecti |
| CVE-2026-103252 | 7.7 HIGH | n8n before 1.123.80, 2.39.6, and 2.40.1 Information Disclosure via Credential Test Endpoin |
| CVE-2026-103249 | 7.6 HIGH | n8n before 1.123.80, 2.39.6, and 2.40.1 Stored DOM XSS via Resource Locator |
| CVE-2026-103259 | 7.6 HIGH | n8n before 2.39.6 and 2.40.x before 2.40.1 Session Token Leak via Dynamic Credentials |
| CVE-2026-103251 | 7.1 HIGH | n8n before 1.123.80, 2.39.6, and 2.40.1 Package Install Validation Bypass via PubSub |
| CVE-2026-103256 | 7.1 HIGH | n8n before 2.39.6 and 2.40.x before 2.40.1 Credentials Leak via preAuthentication Hook |
| CVE-2026-103258 | 6.8 MEDIUM | n8n before 2.39.6 and 2.40.x before 2.40.1 Filter Bypass via Parameter Interpolation |
| CVE-2026-103254 | 6.3 MEDIUM | n8n before 1.123.80, 2.39.6, and 2.40.1 Path Traversal via Resume URL Generation |
| CVE-2026-103245 | 5.3 MEDIUM | n8n before 1.123.80, 2.39.6, and 2.40.1 Missing Webhook Signature Verification |
| CVE-2026-103260 | 4.0 MEDIUM | n8n before 2.39.6 and 2.40.x before 2.40.1 Approval Bypass via Send and Wait Node |
IV. Related Vulnerabilities
Same product: n8n
-
CVE-2026-103260
n8n before 2.39.6 and 2.40.x before 2.40.1 Approval Bypass v -
CVE-2026-103259
n8n before 2.39.6 and 2.40.x before 2.40.1 Session Token Lea -
CVE-2026-103258
n8n before 2.39.6 and 2.40.x before 2.40.1 Filter Bypass via -
CVE-2026-103256
n8n before 2.39.6 and 2.40.x before 2.40.1 Credentials Leak -
CVE-2026-103257
n8n before 1.123.80, 2.39.6, and 2.40.1 Path Traversal via n
Same vendor: n8n-io
-
CVE-2026-103260
n8n before 2.39.6 and 2.40.x before 2.40.1 Approval Bypass v -
CVE-2026-103259
n8n before 2.39.6 and 2.40.x before 2.40.1 Session Token Lea -
CVE-2026-103258
n8n before 2.39.6 and 2.40.x before 2.40.1 Filter Bypass via -
CVE-2026-103257
n8n before 1.123.80, 2.39.6, and 2.40.1 Path Traversal via n -
CVE-2026-103256
n8n before 2.39.6 and 2.40.x before 2.40.1 Credentials Leak
Same weakness: CWE-89
-
CVE-2026-103248
n8n before 1.123.80, 2.39.6, and 2.40.1 PostgREST Filter Inj -
CVE-2026-75786
SQL Injection in Grafana Integration Endpoint (query.php) -
CVE-2026-103543
itsourcecode Leave Management System controller.php sql inje -
CVE-2026-102109
Kiteworks Secure Data Forms SQL injection -
CVE-2026-102098
Kiteworks Core SQL Injection
V. Comments for CVE-2026-103253
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