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    CVE-2026-102135

    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:Sep 30, 2026
    Last Modified:Oct 8, 2026
    EPS:Sep 30, 2026
    EPSS Score:0.00415
    CVSS Score:6.6

    Affected Products

    Vendor
    Accellion
    Product
    Kiteworks
    Vendor
    Kiteworks
    Product
    Kiteworks Email Protection Gateway

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-586 Object Injection

    Related CVEs

    CVE-2026-102105 (CVSS 9.1) — Kiteworks Email Protection Gateway before version 9.5.0 is vulnerable to Server-Side Request Forgery (SSRF). A…
    CVE-2026-102106 (CVSS 9.1) — Improper authentication in a Kiteworks Email Protection Gateway administrative service. An administrative serv…
    CVE-2026-102107 (CVSS 4.6) — Kiteworks Core contains a business logic flaw in a Kiteworks file-request feature allowed an authenticated use…
    CVE-2026-102108 (CVSS 7.2) — An authenticated administrator of Kiteworks Email Protection Gateway could submit a crafted serialized object …
    CVE-2026-102109 (CVSS 7.1) — A SQL injection vulnerability existed in Kiteworks Secure Data Forms, where a value derived from the authentic…
    CVE-2026-102110 (CVSS 5.9) — An endpoint used during initial appliance setup did not require authentication and did not correctly enforce i…
    CVE-2026-102111 (CVSS 4.9) — Kiteworks did not enforce the maximum permitted value for a configurable security-policy setting. An authentic…
    CVE-2026-102112 (CVSS 7.8) — A privilege escalation vulnerability in Kiteworks could allow an attacker who has already obtained code execut…
    CVE-2026-102113 (CVSS 7.8) — A privilege escalation vulnerability in Kiteworks could allow an attacker who has already obtained code execut…
    CVE-2026-102114 (CVSS 7.2) — A command injection vulnerability in Kiteworks could allow a high-privileged authenticated administrator to ex…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High