VYPR
← All advisories
Medium severity6.0NVD Advisory· Published Jun 30, 2026· Updated Jul 2, 2026

CVE-2026-13773

CVE-2026-13773

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.

Affected products

2
  • IBM/Websphere Extreme Scale2 versions
    cpe:2.3:a:ibm:websphere_extreme_scale:*:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:a:ibm:websphere_extreme_scale:*:*:*:*:*:*:*:*range: >=8.6.1.0,<=8.6.1.6
    • (no CPE)range: 8.6.1.0 - 8.6.1.6

Patches

Vulnerability mechanics

References

1

News mentions

0

No linked articles in our index yet.