CVE-2026-11549CWE-284broken-access-control

CVE-2026-11549

Medium · published September 19, 2026

CVSS v3.1
6.5
EPSS
0%
Percentile
12.9
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.5 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00229 · 12.9th percentile
Weakness
CWE-284 · Improper Access Control
Published
2026-09-19T00:17Z
References (2)
https://www.ibm.com/support/pages/node/7286610 · [email protected]https://www.ibm.com/support/pages/node/7286611 · [email protected]
EPSS history
Timeline
  • 20 SEP 03:21Z
    EPSS moved — → 0%
    epss
  • 18 SEP 19:06Z
    Multiple security vulnerabilities may affect IBM WebSphere Liberty that is shipped with IBM CICS TX Advanced.
    cvelistv5