CVE-2026-109630 in ERPNext
Summary
by MITRE • 10/13/2026
Frappe ERPNext before 15.121.0 and 16.x before 16.34.0 contains a missing authorization vulnerability in which certain endpoints fail to enforce proper permission checks. Authenticated attackers can call these endpoints to read data beyond what their assigned role permits.
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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 the Frappe ERPNext framework, specifically affecting versions prior to 15.121.0 and version 16.x prior to 16.34.0. This vulnerability stems from an incomplete implementation of authorization checks on specific API endpoints and server-side routes. In a properly secured enterprise resource planning system, every request must be validated against the user's assigned roles and permissions before any data is retrieved or modified. However, in these affected versions, certain endpoints operate without enforcing this mandatory verification step, effectively bypassing the intended security boundaries established by the application's role-based access control model.
From a technical perspective, the root cause lies in the absence of explicit permission validation logic for specific API handlers. When an authenticated user interacts with these vulnerable endpoints, the server processes the request and returns data without verifying whether the caller possesses the requisite privileges to view that information. This oversight allows any logged-in user, regardless of their hierarchical position or functional role within the organization, to access sensitive records such as financial transactions, employee personal details, inventory levels, or customer contracts. The vulnerability does not require privilege escalation in the traditional sense because the attacker already holds valid authentication credentials; rather, it exploits a logical gap that permits horizontal privilege abuse across different user roles.
The operational impact of this missing authorization flaw is severe for organizations relying on ERPNext for core business operations. Since authenticated attackers can read data beyond their assigned permissions, there is a significant risk of unauthorized disclosure of confidential corporate information. This could lead to competitive intelligence leaks if financial or strategic planning documents are exposed, regulatory non-compliance issues such as violations of GDPR or HIPAA due to the exposure of personally identifiable information, and potential reputational damage resulting from internal data breaches. Furthermore, while this specific vulnerability is described as read-only, knowledge gained through unauthorized access can often serve as a precursor for more sophisticated attacks, including targeted social engineering or further exploitation of other system weaknesses.
This type of flaw aligns with Common Weakness Enumeration identifier CWE-269, which classifies Improper Privilege Management, and specifically relates to the failure to enforce proper authorization checks on API endpoints. In terms of offensive security frameworks, this vulnerability facilitates actions categorized under MITRE ATT&CK technique T1078, Valid Accounts, as it allows an attacker with legitimate credentials to access resources they are not authorized for, thereby expanding their foothold within the network without needing to compromise additional authentication mechanisms.
To mitigate this risk, organizations must immediately upgrade Frappe ERPNext to version 15.121.0 or later, and specifically to version 16.34.0 or higher if operating on the v16 branch. These releases contain patches that enforce strict permission checks across all affected endpoints. In addition to applying vendor-provided updates, administrators should conduct a thorough review of their custom applications and scripts to ensure no additional endpoints have been introduced without proper authorization logic. Implementing comprehensive logging and monitoring for API access patterns can also help detect any anomalous data retrieval activities that may indicate exploitation attempts while patch management processes are underway. Regular security audits focusing on role-based access control configurations are recommended to prevent similar logical flaws in future development cycles.