What is CVE-2026-102144?

CVE-2026-102144 is a medium-severity vulnerability in Kiteworks Email Protection Gateway, classified under Missing Authentication for Critical Function. CVSS score: 5.3/10. Published 2026-09-30.

How severe is CVE-2026-102144?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Auth bypass in Kiteworks Email Protection Gateway

CVE-2026-102144

A resource exhaustion vulnerability in Kiteworks Email Protection Gateway allowed an unauthenticated remote attacker to repeatedly trigger a comparatively expensive server-side operation, causing a partial denial of service.

Vulnerability class: Broken Authentication

Published 2026-09-30 · last modified 2026-10-01.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.

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

Kiteworks Email Protection Gateway

Weakness classification (CWE)

References

9119a7d8-5eab-497f-8521-727c672e3725
9119a7d8-5eab-497f-8521-727c672e3725 (third-party-advisory)

Frequently asked questions

What is CVE-2026-102144?: CVE-2026-102144 is a medium-severity vulnerability in Kiteworks Email Protection Gateway, classified under Missing Authentication for Critical Function. CVSS score: 5.3/10. Published 2026-09-30.
How severe is CVE-2026-102144?: Medium severity. CVSS v3 base score is 5.3 out of 10.