---
id: CVE-2026-102144
title: >-
  A resource exhaustion vulnerability in Kiteworks Email Protection Gateway
  allowed an unauthenticated remote attacker to repeatedly trigger a
  comparatively expensive server-side operation, causing a partial denial of
  service.
summary: >-
  A resource exhaustion vulnerability in Kiteworks Email Protection Gateway
  allowed an unauthenticated remote attacker to repeatedly trigger a
  comparatively expensive server-side operation, causing a partial denial of
  service.
severity: medium
cvss: 5.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L'
cwe:
  - CWE-306
  - CWE-400
vendor: Kiteworks
product: Email Protection Gateway
affected:
  - email_protection_gateway < 9.5.1
published: '2026-09-30'
updated: '2026-09-30'
sourceUpdated: '2026-09-30T21:17:03.267'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-102144'
references:
  - url: >-
      https://github.com/kiteworks/security-advisories/security/advisories/GHSA-wwhf-5862-rjxq
    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
ingestedAt: '2026-09-30T21:25:07.837Z'
---

## Overview

A resource exhaustion vulnerability in Kiteworks Email Protection Gateway allowed an unauthenticated remote attacker to repeatedly trigger a comparatively expensive server-side operation, causing a partial denial of service.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.