CVE-2026-15634 (GCVE-0-2026-15634)
Vulnerability from cvelistv5
Published
2026-09-14 20:01
Modified
2026-10-22 18:53
Severity ?
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
CWE
  • CWE-444 - Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')
Summary
IBM WebSphere Application Server 8.5 and 9.0, and IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.8 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.
References
Impacted products
Vendor Product Version
IBM WebSphere Application Server Version: 9.0
Version: 8.5
    cpe:2.3:a:ibm:websphere_application_server:9.0:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:websphere_application_server:9.0.0:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:websphere_application_server:8.5:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:websphere_application_server:8.5.0:*:*:*:*:*:*:*
 Create a notification for this product.
   IBM WebSphere Application Server - Liberty Version: 17.0.0.3   ≤ 26.0.0.5
    cpe:2.3:a:ibm:websphere_application_server_liberty:17.0.0.3:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:websphere_application_server_liberty:26.0.0.8:*:*:*:*:*:*:*
 Create a notification for this product.
Show details on NVD website

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  • Confirmed: The vulnerability is confirmed from an analyst perspective.
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