CVE-2026-9002

EUVD-2026-40379 · Published Jun 30, 2026

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-controlled length prefixes without sufficient bounds checking, which may allow an attacker on the same network to trigger a StackOverflowError or OutOfMemoryError, resulting in a crash of the WebSphere Application Server JVM.

Technologies

Ibm Websphere Extreme Scale

Weaknesses

CWE-400

CVSS scores

v3.16.5CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

MITRE ATT&CK

Inferred

Where this vulnerability fits in an attack

ReconImpact

Impact

T1499Endpoint Denial of Service

References

https://www.ibm.com/support/pages/node/7278346

Potentially impacted assets

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