Security Advisory

CVE-2026-15396

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2026-09-14 20:08:38

Last updated 2026-09-15 14:37:29

Assigner ibm

CVSS score 6.5

State PUBLISHED

Description

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.

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