Auth bypass in Frappe

CVE-2026-66059

Frappe is a full-stack web application framework. Prior to 16.20.0 and 15.112.0, a field-level permissions bypass exposes restricted DocType fields. This issue is fixed in versions 16.23.0 and 15.112.0.

Vulnerability class: Broken Access Control

Published · last modified .

EPSS exploit prediction

EPSS: 0.005 (41.3th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 41st percentile — 41.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-66059: held from 0.005 to 0.005.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000

Affected products

  • Frappe — versions >= 16.0.0-beta.1, < 16.20.0, < 15.112.0

Weakness classification (CWE)

References