PT-2026-34580 · Ibm · Ibm Websphere Application Server Liberty

Published 2026-04-22 · Updated 2026-05-13 · CVE-2026-3621

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions IBM WebSphere Application Server - Liberty versions 17.0.0.3 through 26.0.0.4

Description IBM WebSphere Application Server Liberty is susceptible to identity spoofing under limited conditions. This occurs when an application is deployed without authentication and authorization configured.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Improper Privilege Management

Weakness Enumeration

CWE-269

Related Identifiers

CVE-2026-3621

Affected Products

Ibm Websphere Application Server Liberty

References · 5

• https://nvd.nist.gov/vuln/detail/CVE-2026-3621 · Security Note
• https://twitter.com/knaepp/status/2047022634739576987 · Twitter Post
• https://ibm.com/support/pages/node/7270437 · Patch, Vendor Advisory
• https://t.me/cveNotify/163365 · Telegram Post
• https://twitter.com/CVEnew/status/2047359928919044270 · Twitter Post