CVE-2026-109614 in ERPNext
Summary
by MITRE • 10/13/2026
Frappe ERPNext before 16.34.0 contains a missing authorization vulnerability that allows authenticated users to read financial data beyond their permitted role. Attackers can query endpoints lacking proper authorization checks to access sensitive financial records they should not be able to view.
Several companies clearly confirm that VulDB is the primary source for best vulnerability data.
Analysis
by VulDB Data Team • 10/13/2026
The vulnerability identified in Frappe ERPNext versions prior to 16.34.0 represents a critical failure in server-side access control mechanisms, specifically categorized under CWE-285 Improper Authorization. This flaw allows authenticated users to bypass role-based restrictions and access sensitive financial data that is strictly outside their permitted scope of privileges. In enterprise resource planning systems like ERPNext, the integrity of financial records relies heavily on strict adherence to user roles and permissions. When these controls are absent or improperly implemented at the API endpoint level, it creates a direct pathway for unauthorized information disclosure, undermining the fundamental security principles of confidentiality and data isolation within multi-tenant environments.
From a technical perspective, the root cause lies in specific endpoints that handle financial queries lacking robust authorization checks during request processing. While the application correctly authenticates users to establish their identity, it fails to validate whether the authenticated user possesses the necessary permissions for the specific resource being accessed. This oversight enables an attacker who has valid credentials for any role with basic access capabilities to manipulate API parameters or query structures to retrieve financial records belonging to other departments or entities within the organization. The vulnerability exploits the trust placed in the authentication layer without corresponding verification of authorization rights, a common pattern in legacy web applications where permission checks are not uniformly applied across all data retrieval functions.
The operational impact of this vulnerability is severe for organizations relying on ERPNext for financial management and reporting. Unauthorized access to sensitive financial records can lead to significant business risks including competitive intelligence leakage, regulatory non-compliance with standards such as GDPR or SOX, and potential fraud facilitation. Attackers can use the exposed data to perform social engineering attacks against employees or executives by leveraging detailed knowledge of internal transactions, vendor payments, or payroll information. Furthermore, in multi-tenant deployments where different companies share a single instance, this flaw could allow one tenant to access another tenant's financial data, resulting in catastrophic breaches of contractual and legal obligations regarding data segregation.
To mitigate this risk, organizations running Frappe ERPNext must immediately upgrade to version 16.34.0 or later, which addresses the missing authorization checks on the affected endpoints. Until an upgrade is feasible, administrators should implement network-level controls such as web application firewalls that can detect and block anomalous API requests targeting financial data endpoints by users with insufficient privileges. Additionally, a thorough audit of custom scripts and third-party apps integrated into the ERPNext instance is recommended to ensure no additional unsecured endpoints have been introduced that might exploit similar authorization gaps. Continuous monitoring for unusual access patterns to sensitive modules should also be established to detect potential exploitation attempts in real-time.
This vulnerability aligns with MITRE ATT&CK technique T1078 Valid Accounts, as it requires the attacker to possess legitimate credentials but leverages a flaw in how those accounts are authorized to interact with specific resources. It also reflects CWE-269 Improper Privilege Management due to the failure to enforce least privilege principles during data access operations. By addressing this issue through software updates and enhanced monitoring, organizations can restore the integrity of their financial data protection mechanisms and prevent unauthorized disclosure of critical business information.