CVE-2026-109610 in ERPNext
Summary
by MITRE • 10/13/2026
Frappe ERPNext before 15.119.1 and 16.x before 16.32.0 contains a missing authorization vulnerability because certain endpoints fail to enforce proper permission checks. Authenticated low-privileged users can call these endpoints to modify documents and data beyond what their assigned role permits.
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Analysis
by VulDB Data Team • 10/13/2026
The identified security flaw in Frappe ERPNext versions prior to 15.119.1 and the 16.x series before version 16.32.0 represents a critical failure in access control mechanisms, specifically categorized under CWE-862 as Missing Authorization. This vulnerability stems from an architectural oversight where specific API endpoints within the application framework do not adequately validate whether the authenticated user possesses the requisite permissions to perform the requested action on targeted data objects. In a properly secured enterprise resource planning system like ERPNext, role-based access control is fundamental to maintaining data integrity and confidentiality, ensuring that users can only interact with resources appropriate for their designated roles. The absence of these checks creates a significant security gap that undermines the foundational trust model of the application.
Authenticated low-privileged users are able to exploit this deficiency by directly invoking vulnerable endpoints through crafted HTTP requests or automated scripts. Because the server fails to enforce proper permission checks, it processes these requests as if they originated from authorized personnel with higher privileges. This allows attackers to modify documents and alter data states that should be restricted based on their assigned role permissions. The impact of such unauthorized modifications can range from minor data inconsistencies to severe business logic disruptions, depending on the sensitivity of the affected records. For instance, an employee with limited access might inadvertently or maliciously change financial figures, update customer contact information, or modify inventory levels, leading to operational errors and potential compliance violations.
From a threat modeling perspective, this vulnerability aligns with MITRE ATT&CK technique T1078, Valid Accounts, as the exploitation requires valid authentication credentials but leverages them for unauthorized actions rather than initial access. It also reflects aspects of privilege escalation where a user effectively gains capabilities beyond their intended scope without needing to compromise higher-level accounts directly. The operational impact extends beyond immediate data corruption; it erodes audit trails and complicates forensic analysis since changes appear to be made by legitimate users acting within what the system incorrectly perceives as authorized boundaries. This can mask malicious activity or accidental errors, making detection and remediation more challenging for security operations teams.
To mitigate this vulnerability, organizations running affected versions of Frappe ERPNext must immediately apply the official patches released in version 15.119.1 and 16.32.0 respectively. These updates address the underlying code logic to ensure that all endpoints perform rigorous authorization checks against user roles before executing any data modification operations. In addition to patching, administrators should review their role configurations to minimize unnecessary permissions assigned to low-privileged users, adhering to the principle of least privilege. Implementing web application firewalls with rules capable of detecting anomalous API usage patterns can provide an additional layer of defense by monitoring for requests that attempt to access restricted endpoints or modify data in ways inconsistent with typical user behavior. Regular security audits and penetration testing focused on authorization flows are also recommended to identify similar gaps across the entire application surface area before they can be exploited.