CVE-2026-9002

MEDIUM

IBM WebSphere eXtremes Scale is affected by uncontrolled resource consumption when XDF is enabled

Title source: cna
STIX 2.1

Description

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.

References (1)

Core 1
Core References
Vendor Advisory vendor-advisory patch
https://www.ibm.com/support/pages/node/7278346

Scores

CVSS v3 6.5
EPSS 0.0027
EPSS Percentile 18.6%
Attack Vector ADJACENT_NETWORK
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-400
Status published
Products (2)
IBM/WebSphere Extreme Scale 8.6.1.0 - 8.6.1.6
ibm/websphere_extreme_scale 8.6.1.0 - 8.6.1.6
Published Jun 30, 2026
Tracked Since Jul 01, 2026