PT-2026-91450 · Ibm · Ibm Websphere Application Server Liberty+2
CVE-2026-15634
·
Published
2026-09-14
·
Updated
2026-09-15
CVSS v3.1
6.5
Medium
| Vector | AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N |
Name of the Vulnerable Software and Affected Versions
IBM WebSphere Application Server 9.0
IBM WebSphere Application Server 8.5
IBM WebSphere Application Server - Liberty (affected versions not specified)
Description
Improper parsing of the HTTP
transfer-encoding request header allows for HTTP request smuggling. An attacker can send a specially crafted header to poison the web cache, bypass web application firewall protection, and conduct Cross-Site Scripting (XSS) attacks, which involve injecting malicious scripts into trusted websites.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
HTTP Request/Response Smuggling
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Weakness Enumeration
Related Identifiers
Affected Products
Ibm Websphere Application Server Liberty
Websphere Application Server 8.5
Websphere Application Server 9.0