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.

CVSS v3 6.6 MEDIUM

6.6^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 0.7 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/kiteworks/security-advisories/security/advisories/GHSA-vmwr-r5xq-hp49	Vendor Advisory
https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/VA/white/2026/va-26-274-01.json	Broken Link

Configurations

Configuration 1 (hide)

cpe:2.3:a:accellion:kiteworks:*:*:*:*:*:*:*:*

History

08 Oct 2026, 13:45

Type	Values Removed	Values Added
CPE		cpe:2.3:a:accellion:kiteworks::::::::
First Time		Accellion Accellion kiteworks
References	~~() https://github.com/kiteworks/security-advisories/security/advisories/GHSA-vmwr-r5xq-hp49 -~~	() https://github.com/kiteworks/security-advisories/security/advisories/GHSA-vmwr-r5xq-hp49 - Vendor Advisory
References	~~() https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/VA/white/2026/va-26-274-01.json -~~	() https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/VA/white/2026/va-26-274-01.json - Broken Link

30 Sep 2026, 21:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-09-30 21:17

Updated : 2026-10-08 13:45

NVD link : CVE-2026-102135

Mitre link : CVE-2026-102135

CVE.ORG link : CVE-2026-102135

JSON object : View

Products Affected

accellion

kiteworks

CWE

CWE-502

Deserialization of Untrusted Data

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