CVE-2026-126381
Deferred Deferred - Pending Action

SQL Injection in n8n Vector Store OracleDB Node

Publication date: 2026-11-13

Last updated on: 2026-11-13

Assigner: VulnCheck

Description
n8n before 2.43.5, 2.44.x before 2.44.1, and 3.x before 3.0.1 contains an SQL injection vulnerability in the Vector Store (OracleDB) node, which does not validate Metadata Filter keys used in vector search queries. Attackers can supply crafted filter keys through untrusted workflow input such as webhooks to read data accessible to the configured Oracle credential.

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Meta Information

Published
2026-11-13
Last Modified
2026-11-13
Generated
2026-11-13
AI Q&A
2026-11-13
EPSS Evaluated
N/A
NVD
CVE-2026-126381
EUVD
EUVD-2026-125184

Affected Vendors & Products

Showing 8 associated CPEs
Vendor Product Version / Range
n8n n8n to 2.43.5 (exc)
n8n n8n From 2.44.0 (inc) to 2.44.1 (exc)
n8n n8n From 3.0.0 (inc) to 3.0.1 (exc)
n8n n8n to 2.44.1 (exc)
n8n n8n to 3.0.1 (exc)
n8n n8n 2.43.5
n8n n8n 2.44.1
n8n n8n 3.0.1

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-89 The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. Without sufficient removal or quoting of SQL syntax in user-controllable inputs, the generated SQL query can cause those inputs to be interpreted as SQL instead of ordinary user data.

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Executive Summary

This is an SQL injection vulnerability in n8n versions before 2.44.1, 2.43.5, and 3.0.1. It affects the Vector Store (OracleDB) node where Metadata Filter keys used in vector search queries are not properly validated. Attackers can inject malicious filter keys through untrusted inputs like webhooks to execute unauthorized SQL queries and access data under the privileges of the configured Oracle credential.

Detection Guidance

Check n8n version with: n8n --version. If using versions before 2.43.5, 2.44.1, or 3.0.1, the system is vulnerable. Inspect workflows for Vector Store (OracleDB) nodes with untrusted input in Metadata Filter keys.

Impact Analysis

An attacker could exploit this to read sensitive data accessible to the Oracle credential configured in n8n. This includes data processed by workflows using the Vector Store (OracleDB) node. The impact depends on the permissions of the Oracle credential and the data it can access.

Compliance Impact

This vulnerability could lead to unauthorized data access, potentially violating GDPR, HIPAA, or other regulations that require strict data access controls. Organizations using affected n8n versions may face compliance risks if sensitive data is exposed through this flaw.

Mitigation Strategies

Upgrade n8n to versions 2.43.5, 2.44.1, or 3.0.1 or later. Restrict access to the n8n instance, audit workflows to prevent untrusted data in filter keys, apply network controls, or deactivate affected workflows until patched.

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