What is CVE-2026-9002?

CVE-2026-9002 is a medium-severity vulnerability in Ibm Websphere Extreme Scale, classified under Uncontrolled Resource Consumption. CVSS score: 6.5/10. Published 2026-06-30.

How severe is CVE-2026-9002?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Resource exhaustion in Ibm Websphere Extreme Scale

CVE-2026-9002

IBM WebSphere Extreme Scale 8.6.1.0 through 8.6.1.6 could allow an adjacent attacker to cause a denial of service due to improper validation in the XDF decoder. The application processes deeply nested Protocol Buffers messages and attacker…

Vulnerability class: DoS (Denial of Service)

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Ibm Websphere Extreme Scale — versions 8.6.1.0

Weakness classification (CWE)

CWE-400 — Uncontrolled Resource Consumption

References

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

Frequently asked questions

What is CVE-2026-9002?: CVE-2026-9002 is a medium-severity vulnerability in Ibm Websphere Extreme Scale, classified under Uncontrolled Resource Consumption. CVSS score: 6.5/10. Published 2026-06-30.
How severe is CVE-2026-9002?: Medium severity. CVSS v3 base score is 6.5 out of 10.