SEPTEMBER 18, 2026
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Case File

CVE-2026-66003

HIGH · CVSS 7.1 EPSS 0.31% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-08-26 · Last synced 2026-09-18

CyberRota Analysis

AI-Generated

The vulnerability affects the Frappe web application framework, specifically in its REST API, where an access control bypass allows low-privileged authenticated users to read unauthorized data from linked DocTypes. This could lead to unauthorized data exposure, compromising sensitive information. Organizations using versions prior to 15.115.0 should prioritize patching to mitigate potential data leaks and ensure compliance with access control policies.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-66003
Severity
HIGH
CVSS
7.1
EPSS
0.31%
Java

Original NVD Description

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.