---
id: CVE-2026-11540
title: >-
  IBM WebSphere Application Server 9.0 and 8.5 could allow a remote attacker to
  obtain sensitive information about the file system through the FileTransfer
  servlet.
summary: >-
  IBM WebSphere Application Server 9.0 and 8.5 could allow a remote attacker to
  obtain sensitive information about the file system through the FileTransfer
  servlet.
severity: medium
cvss: 5.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N'
cwe:
  - CWE-863
vendor: IBM
product: WebSphere Application Server
affected:
  - websphere_application_server 9.0
  - websphere_application_server 8.5
published: '2026-09-18'
updated: '2026-09-22'
sourceUpdated: '2026-09-22T19:32:25.730'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-11540'
references:
  - url: 'https://www.ibm.com/support/pages/node/7286610'
    label: psirt@us.ibm.com
tags:
  - nvd
  - cve.org
epss: 0.00302
epssPercentile: 0.20327
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-09-19T13:36:29.279710Z'
ingestedAt: '2026-09-18T19:49:30.604Z'
---

## Overview

IBM WebSphere Application Server 9.0 and 8.5 could allow a remote attacker to obtain sensitive information about the file system through the FileTransfer servlet.

## Remediation

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