CVE-2026-102108

High

Description

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.

SeverityHigh

CVSS7.2

Exploit probability—

ProductAccellion Kiteworks

PublishedSep 30, 2026

First seenSep 30, 2026

Weakness typeCWE-502Deserialization of untrusted data

How to fix

Update

accellion kiteworks9.5.0 or later

Vendor advisories

github.com/kiteworks/security-advisories/security/advisories/GHSA-837h-99j2-hxjr

Affected products

Product	Affected versions	Fixed in
accellion kiteworks	v < 9.5.0	9.5.0

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