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VULNERABILITIES

CVE-2026-15396 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:6.5 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://www.ibm.com/support/pages/node/7286610 [email protected]

Weakness Enumeration

CWE-IDCWE NameSource
CWE-444Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')[email protected]

Affected Products

No affected product data is available for this CVE.

Change History

2 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-15396
NVD Published Date:
Sep 14, 2026
NVD Last Modified:
Sep 16, 2026
Source:
[email protected]
CVE-2026-15396 Details - Not Deferred