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
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.