CVE-2026-66003: Frappe

High severity, CVSS 7.1. EPSS: 0.4% chance of exploitation in the next 30 days.

Frappe is a full-stack web application framework written in Python and JavaScript. Prior to version 15.115.0, an access control bypass in the REST API allows a user to read data from Linked DocTypes that they are not authorized to access. When a document references another document through a Link field, the framework does not consistently enforce the linked DocType's own permissions when the record is retrieved through the REST API, so a low-privileged authenticated user can obtain fields from linked records outside their permitted scope. This issue is fixed in version 15.115.0.

Affected products

• Frappe Frappe: before 15.115.0 (fixed in 15.115.0)

Published 2026-08-26. Last modified 2026-09-09.