---
id: CVE-2026-77816
title: >-
  IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.9
  administrative client could allow man-in-the-middle attacks
summary: >-
  IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.9
  administrative client could allow man-in-the-middle attacks. An attacker could
  exploit this vulnerability to obtain sensitive information.
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N'
cwe:
  - CWE-295
published: '2026-10-13'
updated: '2026-10-13'
sourceUpdated: '2026-10-13T21:18:21.033'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-77816'
references:
  - url: 'https://www.ibm.com/support/pages/node/7291394'
    label: psirt@us.ibm.com
tags:
  - nvd
ingestedAt: '2026-10-13T21:58:14.188Z'
---

## Overview

IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.9 administrative client could allow man-in-the-middle attacks. An attacker could exploit this vulnerability to obtain sensitive information.

## Remediation

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