FKIE_CVE-2026-86404
Vulnerability from fkie_nvd - Published: 2026-09-07 12:17 - Updated: 2026-09-07 14:16
Severity
Summary
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.
References
Impacted products
| Vendor | Product | Version |
|---|
{
"affected": [
{
"affectedData": [
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:jboss_enterprise_application_platform_els:7.4::el7"
],
"defaultStatus": "affected",
"packageName": "eap7-activemq-artemis",
"product": "Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:2.16.0-22.redhat_00057.1.el7eap",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:jboss_enterprise_application_platform_els:7.4::el7"
],
"defaultStatus": "affected",
"packageName": "eap7-glassfish-jsf",
"product": "Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:2.3.14-11.SP11_redhat_00001.1.el7eap",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:jboss_enterprise_application_platform_els:7.4::el7"
],
"defaultStatus": "affected",
"packageName": "eap7-ironjacamar",
"product": "Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:1.5.26-2.Final_redhat_00001.1.el7eap",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:jboss_enterprise_application_platform_els:7.4::el7"
],
"defaultStatus": "affected",
"packageName": "eap7-jackson-annotations",
"product": "Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:2.18.8-1.redhat_00003.1.el7eap",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:jboss_enterprise_application_platform_els:7.4::el7"
],
"defaultStatus": "affected",
"packageName": "eap7-jackson-core",
"product": "Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:2.18.8-1.redhat_00003.1.el7eap",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:jboss_enterprise_application_platform_els:7.4::el7"
],
"defaultStatus": "affected",
"packageName": "eap7-jackson-databind",
"product": "Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:2.18.8-1.redhat_00003.1.el7eap",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:jboss_enterprise_application_platform_els:7.4::el7"
],
"defaultStatus": "affected",
"packageName": "eap7-jackson-jaxrs-providers",
"product": "Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:2.18.8-1.redhat_00003.1.el7eap",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:jboss_enterprise_application_platform_els:7.4::el7"
],
"defaultStatus": "affected",
"packageName": "eap7-jackson-modules-base",
"product": "Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:2.18.8-1.redhat_00003.1.el7eap",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:jboss_enterprise_application_platform_els:7.4::el7"
],
"defaultStatus": "affected",
"packageName": "eap7-jackson-modules-java8",
"product": "Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:2.18.8-1.redhat_00003.1.el7eap",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:jboss_enterprise_application_platform_els:7.4::el7"
],
"defaultStatus": "affected",
"packageName": "eap7-jboss-remoting",
"product": "Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:5.0.31-3.SP2_redhat_00001.1.el7eap",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:jboss_enterprise_application_platform_els:7.4::el7"
],
"defaultStatus": "affected",
"packageName": "eap7-jboss-server-migration",
"product": "Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:1.10.0-46.Final_redhat_00044.1.el7eap",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:jboss_enterprise_application_platform_els:7.4::el7"
],
"defaultStatus": "affected",
"packageName": "eap7-netty",
"product": "Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:4.1.135-1.Final_redhat_00001.1.el7eap",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:jboss_enterprise_application_platform_els:7.4::el7"
],
"defaultStatus": "affected",
"packageName": "eap7-netty-transport-native-epoll",
"product": "Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:4.1.135-1.Final_redhat_00001.1.el7eap",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:jboss_enterprise_application_platform_els:7.4::el7"
],
"defaultStatus": "affected",
"packageName": "eap7-picketlink-bindings",
"product": "Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:2.5.5-30.SP12_redhat_00020.1.el7eap",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:jboss_enterprise_application_platform_els:7.4::el7"
],
"defaultStatus": "affected",
"packageName": "eap7-picketlink-federation",
"product": "Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:2.5.5-24.SP12_redhat_00016.1.el7eap",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:jboss_enterprise_application_platform_els:7.4::el7"
],
"defaultStatus": "affected",
"packageName": "eap7-undertow",
"product": "Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:2.2.40-2.SP3_redhat_00001.1.el7eap",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:jboss_enterprise_application_platform_els:7.4::el7"
],
"defaultStatus": "affected",
"packageName": "eap7-wildfly",
"product": "Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:7.4.25-2.GA_redhat_00001.1.el7eap",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:amq_broker:7"
],
"defaultStatus": "unaffected",
"packageName": "artemis-server",
"product": "Red Hat AMQ Broker 7",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:camel_quarkus:3"
],
"defaultStatus": "unaffected",
"packageName": "artemis-core-client",
"product": "Red Hat build of Apache Camel 4 for Quarkus 3",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:camel_spring_boot:4"
],
"defaultStatus": "unaffected",
"packageName": "artemis-jms-client",
"product": "Red Hat build of Apache Camel for Spring Boot 4",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:camel_spring_boot:4"
],
"defaultStatus": "unaffected",
"packageName": "artemis-server",
"product": "Red Hat build of Apache Camel for Spring Boot 4",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:camel_spring_boot:4"
],
"defaultStatus": "unaffected",
"packageName": "undertow-core",
"product": "Red Hat build of Apache Camel for Spring Boot 4",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html",
"cpes": [
"cpe:/a:redhat:jboss_enterprise_application_platform:7"
],
"defaultStatus": "affected",
"packageName": "artemis-core-client",
"product": "Red Hat JBoss Enterprise Application Platform 7",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html",
"cpes": [
"cpe:/a:redhat:jboss_enterprise_application_platform:7"
],
"defaultStatus": "affected",
"packageName": "artemis-jms-client",
"product": "Red Hat JBoss Enterprise Application Platform 7",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html",
"cpes": [
"cpe:/a:redhat:jboss_enterprise_application_platform:7"
],
"defaultStatus": "affected",
"packageName": "artemis-server",
"product": "Red Hat JBoss Enterprise Application Platform 7",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html",
"cpes": [
"cpe:/a:redhat:jboss_enterprise_application_platform:7"
],
"defaultStatus": "affected",
"packageName": "undertow-core",
"product": "Red Hat JBoss Enterprise Application Platform 7",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html",
"cpes": [
"cpe:/a:redhat:jboss_enterprise_application_platform:7"
],
"defaultStatus": "affected",
"packageName": "wildfly-messaging-activemq-subsystem",
"product": "Red Hat JBoss Enterprise Application Platform 7",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html",
"cpes": [
"cpe:/a:redhat:jboss_enterprise_application_platform:8"
],
"defaultStatus": "affected",
"packageName": "artemis-core-client",
"product": "Red Hat JBoss Enterprise Application Platform 8",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html",
"cpes": [
"cpe:/a:redhat:jboss_enterprise_application_platform:8"
],
"defaultStatus": "affected",
"packageName": "artemis-jms-client",
"product": "Red Hat JBoss Enterprise Application Platform 8",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html",
"cpes": [
"cpe:/a:redhat:jboss_enterprise_application_platform:8"
],
"defaultStatus": "affected",
"packageName": "artemis-server",
"product": "Red Hat JBoss Enterprise Application Platform 8",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html",
"cpes": [
"cpe:/a:redhat:jboss_enterprise_application_platform:8"
],
"defaultStatus": "affected",
"packageName": "undertow-core",
"product": "Red Hat JBoss Enterprise Application Platform 8",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html",
"cpes": [
"cpe:/a:redhat:jboss_enterprise_application_platform:8"
],
"defaultStatus": "affected",
"packageName": "wildfly-messaging-activemq-subsystem",
"product": "Red Hat JBoss Enterprise Application Platform 8",
"vendor": "Red Hat"
}
],
"source": "secalert@redhat.com"
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "EAP\u0027s 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."
}
],
"id": "CVE-2026-86404",
"lastModified": "2026-09-07T14:16:56.620",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 8.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 2.8,
"impactScore": 5.9,
"source": "secalert@redhat.com",
"type": "Secondary"
}
]
},
"published": "2026-09-07T12:17:21.840",
"references": [
{
"source": "secalert@redhat.com",
"url": "https://access.redhat.com/errata/RHSA-2026:53644"
},
{
"source": "secalert@redhat.com",
"url": "https://access.redhat.com/security/cve/CVE-2026-86404"
},
{
"source": "secalert@redhat.com",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2477930"
}
],
"sourceIdentifier": "secalert@redhat.com",
"vulnStatus": "Received",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-502"
}
],
"source": "secalert@redhat.com",
"type": "Secondary"
}
]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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