CVE-2026-86404
Last modified
CVE-2026-86404 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. 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. EPSS estimates a 0.85% chance of exploitation in the next 30 days.
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
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 8 | All versions |
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 9 | All versions |
| Red Hat | Red Hat JBoss Enterprise Application Platform 8.1.8.GA | All versions |
| Red Hat | Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10 | All versions |
| Red Hat | Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8 | All versions |
| Red Hat | Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9 | All versions |
| Red Hat | Red Hat JBoss Enterprise Application Platform 7 | All versions |
| Red Hat | Red Hat JBoss Enterprise Application Platform 8 | All versions |
References
Timeline
- Published
- Last Modified
- Status
- Awaiting Analysis
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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