CVE-2026-102108: Accellion Kiteworks

High severity, CVSS 7.2. EPSS: 1.5% chance of exploitation in the next 30 days.

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.

Affected products

• Accellion Kiteworks: before 9.5.0 (fixed in 9.5.0)

Published 2026-09-30. Last modified 2026-10-08.