CVE-2026-109667 in ERPNext
Summary
by MITRE • 10/13/2026
Frappe ERPNext before 15.111.0 and 16.x before 16.22.0 contains a privilege escalation vulnerability in a record-creation endpoint that takes the record type from the request and inserts the record with permission checks disabled. Any authenticated user, including one holding no operational role, can supply a privileged record type to create privileged accounts and take full control of the site.
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Analysis
by VulDB Data Team • 10/13/2026
The identified security flaw represents a critical privilege escalation vulnerability within Frappe ERPNext versions prior to 15.111.0 and 16.x prior to 16.22.0, specifically residing in an endpoint responsible for record creation. This architectural weakness stems from the application's failure to enforce proper authorization controls during the instantiation of new data objects. The core technical deficiency lies in how the backend processes incoming requests that specify a target record type. Instead of validating whether the authenticated user possesses the necessary permissions to create records of that specific class, the system blindly accepts the provided record type and proceeds with insertion while explicitly disabling standard permission checks. This design oversight effectively bypasses the role-based access control mechanisms intended to restrict administrative actions to authorized personnel only.
From a technical perspective, this vulnerability is classified under CWE-269, which denotes Improper Privilege Management, as well as CWE-732, involving Incorrect Permission Assignment for Critical Resource. The attacker exploits this by crafting HTTP requests that specify privileged record types, such as those associated with user management or system configuration modules. Because the permission checks are disabled during this specific operation, any authenticated user can inject data into these protected tables regardless of their assigned role hierarchy. This includes users who hold no operational roles at all, highlighting a severe lapse in input validation and security context enforcement within the application logic.
The operational impact of this vulnerability is catastrophic for organizations relying on ERPNext for business operations. An attacker with minimal access can escalate privileges to gain full administrative control over the entire site. Once elevated, the adversary can create new administrator accounts, modify existing user permissions, alter system configurations, and potentially exfiltrate sensitive corporate data stored within the database. This level of compromise allows for complete takeover of the enterprise resource planning environment, leading to significant risks including financial fraud, intellectual property theft, regulatory non-compliance due to unauthorized access, and potential disruption of critical business processes through malicious configuration changes or data destruction.
Mitigation strategies must prioritize immediate patching as the primary defense vector. Organizations running affected versions should upgrade Frappe ERPNext to version 15.111.0 or later for the v15 branch, or version 16.22.0 and above for the v16 branch, where these permission checks have been properly enforced. In environments where immediate patching is not feasible due to operational constraints, temporary mitigations should include restricting access to the vulnerable endpoint via web application firewall rules if identifiable by request patterns, ensuring that only trusted internal networks can reach the ERPNext instance, and auditing user accounts for any unauthorized administrative privileges or suspicious activity indicative of exploitation. Regular security assessments and adherence to secure coding practices that mandate explicit permission validation before resource manipulation are essential to prevent similar flaws in future development cycles.