What is GHSA-hgv4-prq7-c9mx?

GHSA-hgv4-prq7-c9mx is a security advisory published by GitHub Security Advisories with Medium severity. IBM WebSphere Extreme Scale 8.6.1.0 through 8.6.1.6 Approximately 50 generated CORBA stub classes...

Which CVE IDs does GHSA-hgv4-prq7-c9mx cover?

GHSA-hgv4-prq7-c9mx covers the following CVE IDs: CVE-2026-13773. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-hgv4-prq7-c9mx?

GHSA-hgv4-prq7-c9mx has a CVSS v3 base score of 6.0, published by GitHub Security Advisories.

GHSA-hgv4-prq7-c9mxMediumCVSS 6.0

IBM WebSphere Extreme Scale 8.6.1.0 through 8.6.1.6 Approximately 50 generated CORBA stub classes...

Vendor

GitHub Security Advisories

Published

June 30, 2026

Last Modified

June 30, 2026

🔗 CVE IDs covered (1)

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.

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-13773
https://www.ibm.com/support/pages/node/7278594
https://github.com/advisories/GHSA-hgv4-prq7-c9mx