1. Home
  2. CVE Database
  3. CVE-2026-3621
HIGH · 7.5

CVE-2026-3621

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 deploye...

Vulnerability 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.

CVSS Score

7.5

HIGH

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

Affected Products

VendorProductVersions
IbmWebsphere Application Server>= 17.0.0.3, < 26.0.0.5

Related Weaknesses (CWE)

CWE-269

References

FAQ

What is CVE-2026-3621?

CVE-2026-3621 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 deploye...

How severe is CVE-2026-3621?

CVE-2026-3621 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-3621?

Check the references section above for vendor advisories and patch information. Affected products include: Ibm Websphere Application Server.