What is CVE-2026-15325?

CVE-2026-15325 is a high-severity vulnerability in Ibm Websphere Application Server, classified under Inconsistent Interpretation of HTTP Requests (HTTP Request/Response Smuggling). CVSS score: 8.7/10. Published 2026-07-28.

How severe is CVE-2026-15325?

High severity. CVSS v3 base score is 8.7 out of 10.

Vulnerability in Ibm Websphere Application Server

CVE-2026-15325

IBM WebSphere Application Server 9.0, and 8.5 and IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.7 is vulnerable to HTTP request smuggling due to improper handling of TRACE requests.

Vulnerability class: HTTP Request Smuggling

CVSS v3 metric

CVSS v3 base score 8.7 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N.

Affected products

Ibm Websphere Application Server — versions 9.0, 8.5
Ibm Websphere Application Server - Liberty — versions 17.0.0.3

Weakness classification (CWE)

CWE-444 — Inconsistent Interpretation of HTTP Requests (HTTP Request/Response Smuggling)

References

psirt@us.ibm.com (vendor-advisory, patch)

Frequently asked questions

What is CVE-2026-15325?: CVE-2026-15325 is a high-severity vulnerability in Ibm Websphere Application Server, classified under Inconsistent Interpretation of HTTP Requests (HTTP Request/Response Smuggling). CVSS score: 8.7/10. Published 2026-07-28.
How severe is CVE-2026-15325?: High severity. CVSS v3 base score is 8.7 out of 10.