cbcvebase.
CVE-2026-15396
published 2026-09-14

CVE-2026-15396: IBM WebSphere Application Server 9.0, and 8.5 and IBM WebSphere Application Server - Liberty are vulnerable to HTTP request smuggling, caused by improper…

PriorityP336medium6.5CVSS 3.1
AVNACLPRNUINSUCLILAN
EPSS
0.25%
17.0th percentile
IBM WebSphere Application Server 9.0, and 8.5 and IBM WebSphere Application Server - Liberty are vulnerable to HTTP request smuggling, caused by improper parsing of the HTTP transfer-encoding request header. By sending a specially crafted HTTP transfer-encoding request header, an attacker could exploit this vulnerability to poison the web cache, bypass web application firewall protection, and conduct XSS attacks.

Affected

2 ranges
VendorProductVersion rangeFixed in
ibmwebsphere_application_server——
ibmwebsphere_application_server——
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