---
id: CVE-2026-9336
title: >-
  IBM WebSphere Application Server 9.0, and 8.5 is vulnerable to a denial of
  service, caused by sending a specially-crafted HTTP request to an
  administrative endpoint
summary: >-
  IBM WebSphere Application Server 9.0, and 8.5 is vulnerable to a denial of
  service, caused by sending a specially-crafted HTTP request to an
  administrative endpoint. A remote attacker could exploit this vulnerability to
  cause the server …
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-306
vendor: ibm
product: websphere_application_server
affected:
  - 'websphere_application_server >= 8.5.0.0, < 8.5.5.31'
  - 'websphere_application_server >= 9.0.0.0, < 9.0.5.29'
patched:
  - websphere_application_server 9.0.5.29
published: '2026-09-10'
updated: '2026-09-16'
sourceUpdated: '2026-09-16T18:15:26.090'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-9336'
references:
  - url: 'https://www.ibm.com/support/pages/node/7286610'
    label: psirt@us.ibm.com
tags:
  - nvd
  - cve.org
epss: 0.00772
epssPercentile: 0.53716
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-14T15:34:24.299628Z'
ingestedAt: '2026-09-11T16:45:48.026Z'
---

## Overview

IBM WebSphere Application Server 9.0, and 8.5 is vulnerable to a denial of service, caused by sending a specially-crafted HTTP request to an administrative endpoint. A remote attacker could exploit this vulnerability to cause the server to exhaust filesystem space.

## Affected

- `websphere_application_server >= 8.5.0.0, < 8.5.5.31`
- `websphere_application_server >= 9.0.0.0, < 9.0.5.29`

## Remediation

Upgrade past the affected range:

- `websphere_application_server 9.0.5.29`