Vulnerability · Published Aug 26, 2026 · Assigned by GitHub_M

CVE-2026-66003Frappe: Access control bypass via REST API dot-notation fields on linked doctypes

High 7.1

In plain English

A high-severity incorrect authorization in frappe from frappe. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 37% of all known vulnerabilities).

Severity (CVSS 4.0)7.1High

Exploit odds (30 days)0.4%top 63.4% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
frappe	frappe	< 15.115.0

Weakness: CWE-863 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

References

https://github.com/frappe/frappe/security/advisories/GHSA-p25m-7rvg-6fvr x_refsource_CONFIRM
https://github.com/frappe/frappe/releases/tag/v15.115.0 x_refsource_MISC