CVE-2026-13773

medium

Description

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.

References

https://www.ibm.com/support/pages/node/7278594

Details

Source: Mitre, NVD

Published: 2026-06-30

Updated: 2026-06-30

Risk Information

CVSS v2

Base Score: 4.6

Vector: CVSS2#AV:N/AC:H/Au:S/C:P/I:P/A:P

Severity: Medium

CVSS v3

Base Score: 6

Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:L

Severity: Medium