CVE-2026-8400CWE-470

CVE-2026-8400

High · published August 5, 2026

CVSS v3.1
8.1
EPSS
0%
Percentile
40.6
In the wild
Unconfirmed
What it is

IBM WebSphere Application Server 8.5, and 9.0 and IBM WebSphere Application Server - Liberty Continuous delivery has a flaw in the ORB component in IBM SDK, Java Technology Edition, may allow a malicious IIOP server to induce loading and instantation of arbitrary classes.

The record
Technical detail
CVSS v3.1
8.1 · HIGH
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00481 · 40.6th percentile
Weakness
CWE-470 · Use of Externally-Controlled Input to Select Classes or Code ('Unsafe Reflection')
Published
2026-08-05T20:17Z
Affected products (3)
ProductVersionsFixed in
ibm/websphere_application_serverall versions—
ibm/websphere_application_serverall versions—
ibm/websphere_application_serverall versions—
References (1)
https://www.ibm.com/support/pages/node/7282446 · [email protected]
EPSS history
Timeline
  • 05 AUG 15:58Z
    Multiple Vulnerabilities in IBM® Java SDK affect IBM WebSphere Application Server and WebSphere Application Server Liberty due to the July 2026 CPU
    cvelistv5