CVE-2026-13773
IBM WebSphere eXtreme Scale is affected by server side request forgery when ORB is used as Transport Protocol
CVSS Score
6.0
EPSS Score
0.0%
EPSS Percentile
0th
IBM WebSphere Extreme Scale 8.6.1.0 through 8.6.1.6 Approximately 50 generated CORBA stub classes in WebSphere eXtreme Scale's ogclient.jar call ORB.string_to_object() on an attacker-controlled IOR string during Java deserialization, turning any unfiltered ObjectInputStream sink in WAS into outbound IIOP SSRF to an attacker-chosen host; when chained with the IBM ORB's getUserException class-instantiation flaw (WAS-26), this SSRF escalates to remote code execution on the calling JVM.
| CWE | CWE-918 |
| 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:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:L Attack Vector
Network
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
Low
Affected Versions
IBM / WebSphere Extreme Scale
8.6.1.0 ≤ 8.6.1.6