CVE-2026-11549

Medium CVSS 6.5

Published 2026-09-18 · last changed 2026-09-18

The fix

We hold no Microsoft remediation data for CVE-2026-11549, which normally means it is not a Windows CVE. For non-Microsoft software the fix is the vendor's own updated release, and the affected versions are listed below.

What it is

IBM WebSphere Application Server and WebSphere Application Server Liberty are affected by a virtual host bypass vulnerability.

Sources

NVD record for CVE-2026-11549

CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N