What is CVE-2026-109376?

CVE-2026-109376 is a medium-severity vulnerability in Frappe Erpnext, classified under Incorrect Authorization. CVSS score: 4.3/10. Published 2026-10-12.

How severe is CVE-2026-109376?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Auth bypass in Frappe Erpnext

CVE-2026-109376

ERPNext 15.55.0 through 16.50.0 contains an incorrect authorization vulnerability in the get_timesheet_html method that lets authenticated portal users view project Timesheets. The method only checks Project read access, ignoring hide_timesheets and project membership, so attackers can retrieve timesheet names, status, time-log dates and last modifiers.

Vulnerability class: Broken Access Control

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

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/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-863 — Incorrect Authorization

References

github.com/frappe/erpnext/pull/60280 (issue-tracking, patch)
github.com/frappe/erpnext/commit/eb217deef7bd407d34254aee3b3e175e4d357c90 (patch)
github.com/frappe/erpnext/blob/v16.50.0/erpnext/templates/pages/projects.py (technical-description)
github.com/frappe/erpnext (product)
www.vulncheck.com/advisories/erpnext-15.55.0-through-16.50.0-incorrect-authoriz… (third-party-advisory)

Frequently asked questions

What is CVE-2026-109376?: CVE-2026-109376 is a medium-severity vulnerability in Frappe Erpnext, classified under Incorrect Authorization. CVSS score: 4.3/10. Published 2026-10-12.
How severe is CVE-2026-109376?: Medium severity. CVSS v3 base score is 4.3 out of 10.