Auth bypass in Frappe

CVE-2026-39351

Frappe is a full-stack web application framework. Prior to 16.14.0 and 15.104.0, Frappe allows unrestricted Doctype access via API exploit.

Vulnerability class: Broken Access Control

Published · last modified .

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.

EPSS exploit prediction

EPSS: 0.004 (35.9th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 36th percentile — 35.9% 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-2026-39351: held from 0.003 to 0.004.

EPSS over last 30 days · oldest: 0.003 · newest: 0.004 · change: +0.002

Affected products

  • Frappe — versions < 15.104.0, >= 16.0.0-beta.1, < 16.14.0

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-39351?
CVE-2026-39351 is a critical-severity vulnerability in Frappe, classified under Missing Authorization. CVSS score: 9.1/10. Published 2026-04-07.
How severe is CVE-2026-39351?
Critical severity. CVSS v3 base score is 9.1 out of 10.