CVE-2026-9002
IBM WebSphere eXtremes Scale is affected by uncontrolled resource consumption when XDF is enabled
CVSS Score
6.5
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-400 |
| Vendor | ibm |
| Product | websphere extreme scale |
| Published | Jun 30, 2026 |
| Last Updated | Jun 30, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected Versions
IBM / WebSphere Extreme Scale
8.6.1.0 ≤ 8.6.1.6