CVE-2026-11549
Medium
Description
IBM WebSphere Application Server 8.5 and 9.0, and IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.8 are affected by a virtual host bypass vulnerability.
SeverityMedium
CVSS6.5
Exploit probability—
Product
Ibm Websphere Application Server
PublishedSep 18, 2026
First seenSep 18, 2026
Weakness typeCWE-284Improper access control
How to fix
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| ibm websphere_application_server | 9.0, 8.5 | — |
| ibm websphere_application_server_liberty | 17.0.0.3 ≤ v ≤ 26.0.0.5 | — |
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