---
id: CVE-2026-4410
title: >-
  IBM WebSphere Application Server - Liberty 19.0.0.7 through 26.0.0.5 and IBM
  WebSphere Application Server 9.0, and 8.5 and WebSphere Application Server
  Liberty are vulnerable to a denial of service, caused by sending a
  specially-crafted …
summary: >-
  IBM WebSphere Application Server - Liberty 19.0.0.7 through 26.0.0.5 and IBM
  WebSphere Application Server 9.0, and 8.5 and WebSphere Application Server
  Liberty are vulnerable to a denial of service, caused by sending a
  specially-crafted …
severity: medium
cvss: 4.8
cvssVector: 'CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-400
vendor: ibm
product: websphere_application_server
affected:
  - 'websphere_application_server >= 8.5.0.0, <= 8.5.5.29'
  - 'websphere_application_server >= 9.0.0.0, <= 9.0.5.27'
  - 'websphere_application_server >= 19.0.0.7, <= 26.0.0.5'
published: '2026-05-27'
updated: '2026-10-14'
sourceUpdated: '2026-10-14T20:10:00.190'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-4410'
references:
  - url: 'https://www.ibm.com/support/pages/node/7273424'
    label: psirt@us.ibm.com
tags:
  - nvd
epss: 0.00689
epssPercentile: 0.51656
ingestedAt: '2026-10-14T20:53:12.320Z'
---

## Overview

IBM WebSphere Application Server - Liberty 19.0.0.7 through 26.0.0.5 and IBM WebSphere Application Server 9.0, and 8.5 and WebSphere Application Server Liberty are vulnerable to a denial of service, caused by sending a specially-crafted request. A remote attacker could exploit this vulnerability to cause the server to consume memory resources.

## Affected

- `websphere_application_server >= 8.5.0.0, <= 8.5.5.29`
- `websphere_application_server >= 9.0.0.0, <= 9.0.5.27`
- `websphere_application_server >= 19.0.0.7, <= 26.0.0.5`

## Remediation

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