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…

PriorityP426medium6.5CVSS 3.1

AVAACLPRNUINSUCNINAH

EPSS

0.27%

18.6th percentile

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.

Affected

1 ranges

Vendor	Product	Version range	Fixed in
ibm	websphere_extreme_scale	8.6.1.0 – 8.6.1.6	—

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