---
id: CVE-2026-102128
title: >-
  An identity-verification weakness in Kiteworks Email Protection Gateway
  allowed the gateway to act on the Kiteworks platform on behalf of a user it
  had not authenticated, and to provision a platform account for an identity it
  did not alr…
summary: >-
  An identity-verification weakness in Kiteworks Email Protection Gateway
  allowed the gateway to act on the Kiteworks platform on behalf of a user it
  had not authenticated, and to provision a platform account for an identity it
  did not alr…
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N'
cwe:
  - CWE-287
vendor: accellion
product: kiteworks
affected:
  - kiteworks < 9.5.1
patched:
  - kiteworks 9.5.1
published: '2026-09-30'
updated: '2026-10-08'
sourceUpdated: '2026-10-08T13:44:09.977'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-102128'
references:
  - url: >-
      https://github.com/kiteworks/security-advisories/security/advisories/GHSA-qjvp-25r3-rgx6
    label: 9119a7d8-5eab-497f-8521-727c672e3725
  - url: >-
      https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/VA/white/2026/va-26-274-01.json
    label: 9119a7d8-5eab-497f-8521-727c672e3725
tags:
  - nvd
  - cve.org
epss: 0.0021
epssPercentile: 0.11107
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-10-01T13:28:15.954252Z'
ingestedAt: '2026-09-30T21:25:07.831Z'
---

## Overview

An identity-verification weakness in Kiteworks Email Protection Gateway allowed the gateway to act on the Kiteworks platform on behalf of a user it had not authenticated, and to provision a platform account for an identity it did not already know. A remote, unauthenticated sender could potentially exploit this to obtain control of a platform account.

## Affected

- `kiteworks < 9.5.1`

## Remediation

Upgrade past the affected range:

- `kiteworks 9.5.1`