CVE-2026-3621

HIGH

IBM WebSphere Application Server Liberty is affected by identity spoofing

Title source: cna

Description

IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.4 IBM WebSphere Application Server Liberty is vulnerable to identity spoofing under limited conditions when an application is deployed without authentication and authorization configured.

References (1)

[Vendor Advisory] https://www.ibm.com/support/pages/node/7270437

Scores

CVSS v3 7.5

EPSS 0.0005

EPSS Percentile 15.6%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact total

Details

CWE

CWE-269

Status published

Products (1)

IBM/WebSphere Application Server - Liberty 17.0.0.3 - 26.0.0.4

Published Apr 23, 2026

Tracked Since Apr 23, 2026