What is CVE-2026-9320?

CVE-2026-9320 is a medium-severity vulnerability in Ibm Websphere Application Server, classified under Uncontrolled Resource Consumption. CVSS score: 5.9/10. Published 2026-06-22.

How severe is CVE-2026-9320?

Medium severity. CVSS v3 base score is 5.9 out of 10.

Resource exhaustion in Ibm Websphere Application Server

CVE-2026-9320

IBM WebSphere Application Server 9.0, and 8.5 and IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.6 are vulnerable to a denial of service, caused by sending a specially-crafted request. A remote attacker could exploit th…

Vulnerability class: DoS (Denial of Service)

CVSS v3 metric

CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Ibm Websphere Application Server — versions 9.0.0, 8.5.0
Ibm Websphere Application Server - Liberty — versions 17.0.0.3

Weakness classification (CWE)

CWE-400 — Uncontrolled Resource Consumption

References

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

Frequently asked questions

What is CVE-2026-9320?: CVE-2026-9320 is a medium-severity vulnerability in Ibm Websphere Application Server, classified under Uncontrolled Resource Consumption. CVSS score: 5.9/10. Published 2026-06-22.
How severe is CVE-2026-9320?: Medium severity. CVSS v3 base score is 5.9 out of 10.