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CVE-2026-102108

Kiteworks Email Protection Gateway deserialization of untrusted data

CVSS 3.1 7.2 HIGHCheck source for fixed versionsKEV status unknown

Original advisory

Historical advisory recorded 23 Oct 2026 15:48:27 UTC. Read the latest advisory.

cve-program · CVE-2026-102108

Published

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.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-102108

Published

Email Protection Gateway

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Kiteworks",
                    "product": "Email Protection Gateway",
                    "defaultStatus": "unknown",
                    "versions": [
                        {
                            "version": "0",
                            "status": "affected",
                            "lessThan": "9.5.0",
                            "versionType": "custom"
                        },
                        {
                            "version": "9.5.0",
                            "status": "unaffected"
                        }
                    ]
                }

Original source record · Cite this exact observation · Complete original publisher JSON