Description
On a Kiteworks Email Protection Gateway cluster with database replication enabled, a party trusted by the cluster could submit a crafted serialized object that was deserialized without sufficient validation, potentially allowing code execution as the gateway service account. Replication is disabled by default, and exploitation requires control of a trusted cluster peer or administrative access to the appliance.
Published: 2026-09-30
Score: 6.6 Medium
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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History

Wed, 30 Sep 2026 20:30:00 +0000

Type Values Removed Values Added
Description On a Kiteworks Email Protection Gateway cluster with database replication enabled, a party trusted by the cluster could submit a crafted serialized object that was deserialized without sufficient validation, potentially allowing code execution as the gateway service account. Replication is disabled by default, and exploitation requires control of a trusted cluster peer or administrative access to the appliance.
Title Kiteworks Email Protection Gateway Deserialization of Untrusted Data
Weaknesses CWE-502
References
Metrics cvssV3_1

{'score': 6.6, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H'}

Subscriptions

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cve-icon MITRE

Status: PUBLISHED

Assigner: cisa-cg

Published:

Updated: 2026-09-30T20:12:22.410Z

Reserved: 2026-09-28T17:39:13.563Z

Link: CVE-2026-102135

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-09-30T21:17:02.157

Modified: 2026-09-30T21:17:02.157

Link: CVE-2026-102135

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

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Weaknesses