Deserialization in Kiteworks Email Protection Gateway

CVE-2026-102108

An authenticated administrator of Kiteworks Email Protection Gateway could submit a crafted serialized object to a cluster management interface that was deserialized without sufficient validation, potentially allowing arbitrary code execution in the context of the gateway service account. Exploitation requires an administrator account holding a specific queue-management privilege.

Vulnerability class: Insecure Deserialization

Published · last modified .

CVSS v3 metric

CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

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

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-102108?
CVE-2026-102108 is a high-severity vulnerability in Kiteworks Email Protection Gateway, classified under Deserialization of Untrusted Data. CVSS score: 7.2/10. Published 2026-09-30.
How severe is CVE-2026-102108?
High severity. CVSS v3 base score is 7.2 out of 10.