What is CVE-2026-109661?

CVE-2026-109661 is a medium-severity vulnerability in Frappe Erpnext, classified under Missing Authorization. CVSS score: 6.5/10. Published 2026-10-12.

How severe is CVE-2026-109661?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Auth bypass in Frappe Erpnext

CVE-2026-109661

Frappe ERPNext before 15.116.0 and 16.x before 16.27.0 contains a missing authorization vulnerability in certain endpoints that fail to enforce proper authorization checks, exposing financial data. Authenticated attackers with low-privileged accounts can query these endpoints to read financial data beyond their permitted role.

Vulnerability class: Broken Access Control

Published 2026-10-12 · last modified 2026-10-12.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Frappe Erpnext

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

github.com/frappe/erpnext/security/advisories/GHSA-j2h8-8xqj-jrg9 (vendor-advisory)
www.vulncheck.com/advisories/frappe-erpnext-before-15.116.0-missing-authorizati… (third-party-advisory)

Frequently asked questions

What is CVE-2026-109661?: CVE-2026-109661 is a medium-severity vulnerability in Frappe Erpnext, classified under Missing Authorization. CVSS score: 6.5/10. Published 2026-10-12.
How severe is CVE-2026-109661?: Medium severity. CVSS v3 base score is 6.5 out of 10.