CVE-2026-109649 in ERPNext
Summary
by MITRE • 10/13/2026
Frappe ERPNext before 15.102.0 and 16.x before 16.11.0 contains an SQL injection vulnerability in some endpoints due to missing input validation, allowing manipulation of database queries. Authenticated attackers can send specially crafted requests to the affected endpoints to extract sensitive information from the database.
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Analysis
by VulDB Data Team • 10/13/2026
The identified security flaw resides within Frappe ERPNext versions prior to 15.102.0 and version 16.x prior to 16.11.0, representing a critical SQL injection vulnerability that stems directly from insufficient input validation mechanisms in specific API endpoints. This architectural weakness allows malicious actors who have successfully authenticated into the system to manipulate database queries by injecting arbitrary Structured Query Language code through specially crafted HTTP requests. The core technical failure lies in the application's inability to properly sanitize or parameterize user-supplied data before it is concatenated into SQL statements, thereby bypassing intended logical controls and granting unauthorized access to underlying database structures.
From a classification perspective, this vulnerability aligns with Common Weakness Enumeration identifier CWE-89, which defines Improper Neutralization of Special Elements used in an SQL Command. The exploitation vector corresponds to ATT&CK technique T1059, specifically the command injection sub-category, although it manifests through web application interfaces rather than direct shell access. Because the vulnerability requires authentication, it falls under the category of authenticated attacks where the threat actor leverages valid credentials obtained through phishing, credential stuffing, or other initial access methods to escalate privileges and exfiltrate data. The absence of robust input validation means that even users with standard operational roles can potentially execute administrative-level database commands if they target the specific vulnerable endpoints correctly.
The operational impact of this vulnerability is severe due to the comprehensive nature of ERPNext as an enterprise resource planning platform. Successful exploitation enables attackers to perform a wide range of malicious activities including reading sensitive business data such as financial records, customer personal information, and proprietary intellectual property stored within the database. Furthermore, depending on the specific configuration and privileges granted to the application's database user account, an attacker might be able to modify or delete critical records, potentially disrupting business operations and causing significant integrity violations. In worst-case scenarios where the underlying database engine permits it, this could lead to remote code execution if the database service is configured with excessive permissions that allow file system access via SQL commands.
To mitigate this risk, organizations running affected versions of Frappe ERPNext must immediately upgrade to version 15.102.0 or later for the v15 branch and version 16.11.0 or later for the v16 branch. These releases contain patches that implement proper input sanitization and utilize parameterized queries to prevent SQL injection attacks. In addition to upgrading, administrators should enforce strict role-based access control policies to ensure that only necessary users have access to potentially vulnerable endpoints. Implementing a Web Application Firewall can also provide an additional layer of defense by detecting and blocking common SQL injection patterns in incoming traffic while the upgrade process is being executed. Regular security audits and penetration testing are recommended to verify that input validation controls remain effective across all application modules after deployment.