{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-15564", "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "state": "PUBLISHED", "assignerShortName": "redhat", "dateReserved": "2026-07-13T05:40:09.817Z", "datePublished": "2026-10-29T06:07:28.359Z", "dateUpdated": "2026-10-29T06:07:28.359Z"}, "containers": {"cna": {"title": "Wildfly-ejb: wildfly-iiop-openjdk: eap iiop listeners may permit unauthed deserialization", "metrics": [{"other": {"content": {"value": "Moderate", "namespace": "https://access.redhat.com/security/updates/classification/"}, "type": "Red Hat severity rating"}}, {"cvssV3_1": {"attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.4, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "format": "CVSS"}], "descriptions": [{"lang": "en", "value": "Wildfly's IIOP listener may permit deserialization of input streams before authentication is performed. An attacker who can gain access to the IIOP port may be able to construct and send malicious objects and achieve deserialization, if the target EJB allows untyped method parameters, and depending on the potential gadget chains available in the running classpath."}], "affected": [{"vendor": "Red Hat", "product": "Red Hat JBoss Enterprise Application Platform 7", "collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html", "packageName": "wildfly-ejb3", "defaultStatus": "affected", "cpes": ["cpe:/a:redhat:jboss_enterprise_application_platform:7"]}, {"vendor": "Red Hat", "product": "Red Hat JBoss Enterprise Application Platform 7", "collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html", "packageName": "wildfly-iiop-openjdk", "defaultStatus": "unaffected", "cpes": ["cpe:/a:redhat:jboss_enterprise_application_platform:7"]}, {"vendor": "Red Hat", "product": "Red Hat JBoss Enterprise Application Platform 8", "collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html", "packageName": "wildfly-ejb3", "defaultStatus": "affected", "cpes": ["cpe:/a:redhat:jboss_enterprise_application_platform:8"]}, {"vendor": "Red Hat", "product": "Red Hat JBoss Enterprise Application Platform 8", "collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html", "packageName": "wildfly-iiop-openjdk", "defaultStatus": "affected", "cpes": ["cpe:/a:redhat:jboss_enterprise_application_platform:8"]}], "references": [{"url": "https://access.redhat.com/security/cve/CVE-2026-15564", "tags": ["vdb-entry", "x_refsource_REDHAT"]}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2478005", "name": "RHBZ#2478005", "tags": ["issue-tracking", "x_refsource_REDHAT"]}], "datePublic": "2026-10-27T00:00:00.000Z", "problemTypes": [{"descriptions": [{"cweId": "CWE-829", "description": "Inclusion of Functionality from Untrusted Control Sphere", "lang": "en", "type": "CWE"}]}], "x_redhatCweChain": "CWE-829: Inclusion of Functionality from Untrusted Control Sphere", "workarounds": [{"lang": "en", "value": "Restrict network reachability to the IIOP listener (default TCP port 3528) so that only localhost or authorized management networks can access it.\n\n1. Restrict port exposure using firewalld:\n```bash\nfirewall-cmd --permanent --remove-port=3528/tcp\nfirewall-cmd --reload\n```\n\n2. If CORBA/IIOP interoperability is not required by deployed applications, remove the IIOP subsystem using the JBoss Management CLI:\n```bash\njboss-cli.sh --connect --command=\"/subsystem=iiop-openjdk:remove\"\n```\n\nCaveats:\nRemoving the IIOP subsystem will break remote EJB invocations or external services that rely on CORBA/IIOP protocols.\n\nWarning:\nApplying firewall changes or removing server subsystems will disrupt active client connections and requires reloading the server configuration or restarting the JBoss EAP service to take full effect."}], "timeline": [{"lang": "en", "time": "2026-05-15T18:11:36.561Z", "value": "Reported to Red Hat."}, {"lang": "en", "time": "2026-10-27T00:00:00.000Z", "value": "Made public."}], "providerMetadata": {"orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "shortName": "redhat", "dateUpdated": "2026-10-29T06:07:28.359Z"}, "x_generator": {"engine": "cvelib 1.8.0"}}}}

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{"affected": [{"affectedData": [{"collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html", "cpes": ["cpe:/a:redhat:jboss_enterprise_application_platform:7"], "defaultStatus": "affected", "packageName": "wildfly-ejb3", "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": "unaffected", "packageName": "wildfly-iiop-openjdk", "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": "wildfly-ejb3", "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-iiop-openjdk", "product": "Red Hat JBoss Enterprise Application Platform 8", "vendor": "Red Hat"}], "source": "secalert@redhat.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Wildfly's IIOP listener may permit deserialization of input streams before authentication is performed. An attacker who can gain access to the IIOP port may be able to construct and send malicious objects and achieve deserialization, if the target EJB allows untyped method parameters, and depending on the potential gadget chains available in the running classpath."}], "id": "CVE-2026-15564", "lastModified": "2026-10-29T06:17:20.750", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.4, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.4, "impactScore": 5.9, "source": "secalert@redhat.com", "type": "Primary"}]}, "published": "2026-10-29T06:17:20.590", "references": [{"source": "secalert@redhat.com", "url": "https://access.redhat.com/security/cve/CVE-2026-15564"}, {"source": "secalert@redhat.com", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2478005"}], "sourceIdentifier": "secalert@redhat.com", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-829"}], "source": "secalert@redhat.com", "type": "Primary"}]}

{"bugzilla": {"description": "wildfly-ejb: wildfly-iiop-openjdk: EAP IIOP listeners may permit unauthed deserialization", "id": "2478005", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2478005"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.4", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-829", "details": ["Wildfly's IIOP listener may permit deserialization of input streams before authentication is performed. An attacker who can gain access to the IIOP port may be able to construct and send malicious objects and achieve deserialization, if the target EJB allows untyped method parameters, and depending on the potential gadget chains available in the running classpath."], "mitigation": {"lang": "en:us", "value": "Restrict network reachability to the IIOP listener (default TCP port 3528) so that only localhost or authorized management networks can access it.\n1. Restrict port exposure using firewalld:\n```bash\nfirewall-cmd --permanent --remove-port=3528/tcp\nfirewall-cmd --reload\n```\n2. If CORBA/IIOP interoperability is not required by deployed applications, remove the IIOP subsystem using the JBoss Management CLI:\n```bash\njboss-cli.sh --connect --command=\"/subsystem=iiop-openjdk:remove\"\n```\nCaveats:\nRemoving the IIOP subsystem will break remote EJB invocations or external services that rely on CORBA/IIOP protocols.\nWarning:\nApplying firewall changes or removing server subsystems will disrupt active client connections and requires reloading the server configuration or restarting the JBoss EAP service to take full effect."}, "name": "CVE-2026-15564", "package_state": [{"cpe": "cpe:/a:redhat:jboss_enterprise_application_platform:7", "fix_state": "Affected", "package_name": "wildfly-ejb3", "product_name": "Red Hat JBoss Enterprise Application Platform 7"}, {"cpe": "cpe:/a:redhat:jboss_enterprise_application_platform:7", "fix_state": "Not affected", "package_name": "wildfly-iiop-openjdk", "product_name": "Red Hat JBoss Enterprise Application Platform 7"}, {"cpe": "cpe:/a:redhat:jboss_enterprise_application_platform:8", "fix_state": "Affected", "package_name": "wildfly-ejb3", "product_name": "Red Hat JBoss Enterprise Application Platform 8"}, {"cpe": "cpe:/a:redhat:jboss_enterprise_application_platform:8", "fix_state": "Affected", "package_name": "wildfly-iiop-openjdk", "product_name": "Red Hat JBoss Enterprise Application Platform 8"}], "public_date": "2026-10-27T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-15564\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-15564"], "statement": "Red Hat rates this vulnerability as Moderate because successful exploitation requires multiple non-standard conditions despite the pre-authentication deserialization flaw. In standard deployments of JBoss Enterprise Application Platform (EAP), the IIOP service binds exclusively to localhost, preventing remote network reachability by default. Furthermore, parameter processing is constrained by declared bean types, meaning an attack succeeds only if an exposed EJB accepts generic or untyped parameters and a viable gadget chain exists on the application classpath.", "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": null}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Red Hat JBoss Enterprise Application Platform 7", "source": "cna", "vendor": "Red Hat"}, "product": "jboss_enterprise_application_platform", "vendor": "redhat"}, {"configurations": [{"platform": null, "status": "unaffected", "versions": null}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Red Hat JBoss Enterprise Application Platform 7", "source": "cna", "vendor": "Red Hat"}, "product": "jboss_enterprise_application_platform", "vendor": "redhat"}], "created": "2026-10-29T07:30:14.874795+00:00", "updated": "2026-10-29T09:45:17.328066+00:00", "vendors": ["redhat", "redhat$PRODUCT$jboss_enterprise_application_platform"]}