Name: CVE-2026-8400: Use of Externally-Controlled Input to Select Classes or Code
Creator: Rapid7
Published: 2026-08-05T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2026-8400, CWE-470, CVSS 9.8, EPSS 0.00481

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.

CVSS Details

CVSS 3.1 Base Score: 9.8
CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Ibm Aix	—	Apply the fix or workaround for aix_vios_advisory	Aug 16, 2026	Aug 14, 2026
Ibm Java	—	Upgrade IBM Java to version 7.1.5.31Upgrade IBM Java to version 8.0.8.70	Aug 5, 2026	Aug 5, 2026
Ibm Was	—	Upgrade to minimal fix pack levels as required by interim fixes and then apply latest Interim Fix.	Aug 5, 2026	Aug 5, 2026
Redhat_linux	—	Upgrade java-1.8.0-ibmUpgrade java-1.8.0-ibm-headlessUpgrade java-1.8.0-ibm-jdbcUpgrade java-1.8.0-ibm-pluginUpgrade java-1.8.0-ibm-develUpgrade java-1.8.0-ibm-webstartUpgrade java-1.8.0-ibm-srcUpgrade java-1.8.0-ibm-demo	Aug 10, 2026	Aug 4, 2026

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CVSS Details

Covered by Rapid7

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