CVE-2026-109625 in ERPNext
Summary
by MITRE • 10/13/2026
Frappe ERPNext before 15.121.3 and 16.x before 16.35.0 contains a missing authorization vulnerability in certain endpoints that fail to enforce role-based authorization checks. Authenticated users can request these endpoints to read financial data beyond the permissions granted by their assigned role.
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Analysis
by VulDB Data Team • 10/13/2026
The identified security flaw represents a critical failure in access control mechanisms within Frappe ERPNext, specifically affecting versions prior to 15.121.3 and version 16.x prior to 16.35.0. This vulnerability is classified as an insecure direct object reference or broken access control issue where the application logic fails to validate whether the authenticated user possesses the necessary permissions to access specific resources. In a properly secured enterprise resource planning system, role-based access control ensures that users can only interact with data and functions relevant to their assigned job roles. However, in this instance, certain API endpoints do not enforce these checks, allowing any logged-in user to bypass intended restrictions.
The technical nature of the flaw lies in the server-side validation logic for specific financial data endpoints. When an authenticated session is established, the application accepts requests targeting sensitive financial records without verifying if the current user's role grants them read access to that particular dataset. This oversight means that the authorization layer is effectively bypassed at the endpoint level rather than through a fundamental authentication failure. An attacker who has obtained valid credentials for any standard user account can exploit this gap by crafting specific HTTP requests to these vulnerable endpoints, thereby retrieving financial information such as invoices, payment entries, or bank reconciliations that should be restricted to higher-privileged roles like Accountants or Administrators.
The operational impact of this vulnerability is severe due to the sensitivity of the exposed data. Financial records contain highly confidential business intelligence including revenue streams, client details, vendor contracts, and internal cost structures. Unauthorized access to this information can lead to significant financial loss through fraud, competitive disadvantage if trade secrets are leaked, or regulatory non-compliance with standards such as GDPR, HIPAA, or SOX depending on the industry sector. Furthermore, because the vulnerability relies on authenticated users, it is particularly dangerous in scenarios where an attacker has compromised a low-privilege account through phishing or credential stuffing attacks, using that foothold to escalate their access to sensitive financial data without needing higher-level privileges.
This issue aligns with CWE-269 Improper Privilege Management and CWE-862 Missing Authorization, which describe failures in ensuring users have only the permissions they need. From a tactical perspective, this vulnerability facilitates lateral movement within an organization's digital infrastructure by allowing attackers to gather intelligence from financial systems that may be linked to other critical assets. It also corresponds to MITRE ATT&CK technique T1078 Valid Accounts and potentially T1530 Data from Cloud Storage if the ERPNext instance is hosted in a cloud environment, as it enables unauthorized exfiltration of stored data.
To mitigate this risk, organizations running affected versions must immediately upgrade Frappe ERPNext to version 16.35.0 or later for the v16 branch and version 15.121.3 or later for the v15 branch. These updates contain patches that enforce proper role-based authorization checks on all financial endpoints, ensuring that access is validated against the user's assigned permissions before data retrieval occurs. In addition to upgrading, administrators should audit their current deployment configurations to ensure no custom scripts have bypassed standard framework security controls. Implementing a Web Application Firewall with rules targeting abnormal API request patterns can provide an additional layer of defense while patching efforts are underway. Regular penetration testing focused on access control flaws is also recommended to identify similar gaps in other modules before they can be exploited by malicious actors.