CVE-2026-3621

HIGH

IBM WebSphere Application Server Liberty is affected by identity spoofing

Title source: cna
STIX 2.1

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)

Core 1
Core References
Vendor Advisory vendor-advisory patch
https://www.ibm.com/support/pages/node/7270437

Scores

CVSS v3 7.5
EPSS 0.0022
EPSS Percentile 12.3%
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 (2)
IBM/WebSphere Application Server - Liberty 17.0.0.3 - 26.0.0.4
ibm/websphere_application_server 17.0.0.3 - 26.0.0.5
Published Apr 23, 2026
Tracked Since Apr 23, 2026