CVE-2026-109624 in ERPNext
Summary
by MITRE • 10/13/2026
Frappe ERPNext before 15.120.0 and 16.x before 16.33.0 contains a missing authorization vulnerability in certain endpoints that fail to enforce proper permission checks. Authenticated low-privileged users can request these endpoints to read personal 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 15.120.0 and version 16.x prior to 16.33.0. 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 privileges to access specific resources. The core technical deficiency lies in the server-side endpoint handlers which accept requests from users with low-privileged roles but do not adequately verify that these roles are authorized to perform read operations on sensitive data objects. Consequently, an attacker who has obtained valid credentials for a standard or restricted account can manipulate request parameters to target endpoints designed for administrative or higher-level personnel access.
From a technical perspective, the vulnerability exploits the lack of rigorous permission checks during the execution phase of API requests. When a user submits a query to these specific endpoints, the application processes the request based on the provided identifiers without cross-referencing them against the user's assigned role permissions matrix. This oversight allows for unauthorized data retrieval, effectively bypassing the intended security boundaries established by the system administrators. The flaw is particularly dangerous because it does not require complex exploitation techniques or external dependencies; it relies solely on the misconfiguration of access control logic within the application codebase itself.
The operational impact of this vulnerability is severe due to its potential for data exfiltration and privacy violations. Authenticated low-privileged users can read personal data that they are explicitly denied permission to view, such as employee salaries, confidential business strategies, or private customer information. This breach compromises the confidentiality integrity of the system and may lead to significant regulatory non-compliance with standards like GDPR or HIPAA if sensitive personal identifiable information is exposed. Furthermore, this access control bypass can serve as a stepping stone for further attacks, including privilege escalation or social engineering campaigns that leverage stolen data to gain deeper trust within an organization.
To mitigate this risk, organizations running affected versions of Frappe ERPNext must immediately upgrade to version 15.120.0 or later, which includes the necessary patches to enforce proper permission checks on all endpoints. For environments where immediate upgrading is not feasible, administrators should implement strict network-level access controls and web application firewalls that monitor for anomalous request patterns indicative of unauthorized data retrieval attempts. Additionally, a thorough audit of custom applications built on the Frappe framework is recommended to ensure no similar logic flaws exist in bespoke modules. Regular security assessments and penetration testing focusing on role-based access control validation are essential to maintain robust defense-in-depth strategies against such internal threats.
This vulnerability aligns with CWE-269 Improper Privilege Management, as it involves a failure to enforce proper authorization levels for users based on their assigned roles. It also maps directly to the MITRE ATT&CK technique T1078 Valid Accounts, where attackers leverage legitimate credentials to access resources they should not be able to reach. By addressing this flaw through software updates and enhanced monitoring, organizations can significantly reduce their attack surface and protect sensitive organizational data from unauthorized internal or external actors exploiting these permission gaps.