CVE-2026-86404 Details
Description
EAP's Artemis deserialization configuration permits deserialization by default. ObjectMessage.getObject() uses ObjectInputStreamWithClassLoader, which implements allow-list/block-list filtering via its checkSecurity()/isTrustedType() method. However, by default both allow-list and block-list are empty. When the allow-list is empty (size == 0), isTrustedType() returns true for ALL classes. This means all classes are deserializable by default.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Sep 9, 2026References to Advisories, Solutions, and Tools
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Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-502 | Deserialization of Untrusted Data | [email protected] |
Affected Products
No affected product data is available for this CVE.
Change History
7 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Sep 25, 2026 | CVE Modified | [email protected] |
| Sep 22, 2026 | CVE Modified | [email protected] |
| Sep 18, 2026 | CVE Modified | [email protected] |
| Sep 17, 2026 | CVE Modified | [email protected] |
| Sep 9, 2026 | CVE Modified | CISA-ADP |
| Sep 7, 2026 | CVE Modified | [email protected] |
| Sep 7, 2026 | New CVE Received | [email protected] |