What is CVE-2026-109598?

CVE-2026-109598 is a medium-severity vulnerability in Frappe, classified under Missing Authorization. CVSS score: 4.3/10. Published 2026-10-12.

How severe is CVE-2026-109598?

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

Auth bypass in Frappe

CVE-2026-109598

Frappe Framework before 15.120.0 and 16.x before 16.33.0 contains a missing authorization vulnerability in the whitelisted send_sms API endpoint, which does not verify that the caller is permitted to send SMS messages. Users lacking the required permissions can invoke send_sms to send arbitrary SMS messages that impersonate the Company.

Vulnerability class: Broken Access Control

Published 2026-10-12 · last modified 2026-10-13.

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:N/I:L/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

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

github.com/frappe/frappe/security/advisories/GHSA-wrh5-p77r-jpvq (vendor-advisory)
www.vulncheck.com/advisories/frappe-before-16.33.0-broken-authorization-via-sen… (third-party-advisory)

Frequently asked questions

What is CVE-2026-109598?: CVE-2026-109598 is a medium-severity vulnerability in Frappe, classified under Missing Authorization. CVSS score: 4.3/10. Published 2026-10-12.
How severe is CVE-2026-109598?: Medium severity. CVSS v3 base score is 4.3 out of 10.