Improper privilege management in IBM WebSphere Application Server Liberty - CVE-2026-3621

 

Improper privilege management in IBM WebSphere Application Server Liberty - CVE-2026-3621

Published: June 24, 2026


Vulnerability identifier: #VU135090
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2026-3621
CWE-ID: CWE-269
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: IBM Corporation
Affected software:
IBM WebSphere Application Server Liberty

Detailed vulnerability description

The vulnerability allows a remote user to escalate privileges.

The vulnerability occurs when an application is deployed without authentication and authorization configured. A remote user can escalate privileges.


How to mitigate CVE-2026-3621

Install updates from vendor's website.

Sources