CVE-2026-11548

EUVD-2026-83281
IBM WebSphere Application Server 8.5 and 9.0, and and IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.8 are affected by an HTTP request smuggling vulnerability.
HTTP Request/Response Smuggling
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
ibmCNA
4.8 MEDIUM
NETWORK
HIGH
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 16.78%
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources (CNA/ADP records, vendor advisories, Enginsight analysis).
VendorProductVersionSource
ibmwebsphere
9.0
CNA
ibmwebsphere
8.5
CNA
ibmwebsphere_liberty
17.0.0.3 ≤
𝑥
≤ 26.0.0.5
CNA
Common Weakness Enumeration
References
https://www.ibm.com/support/pages/node/7286610
https://www.ibm.com/support/pages/node/7286611