Description
when EAP runs with -secmgr, the openjdk-orb's JDKBridge honours attacker-supplied CDR codebase URLs during object unmarshalling on :3528, allowing an unauthenticated attacker to load and instantiate arbitrary classes from a remote URL in the server JVM before EJB security interceptors run.
Published: 2026-10-28
Score: 8.1 High
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

Vendor Workaround

To mitigate this flaw, restrict access to the IIOP service (TCP port 3528) to trusted networks using firewall rules, or disable the IIOP subsystem if CORBA is not required by deployed applications. To restrict or remove external access to port 3528 using firewalld: ``` firewall-cmd --permanent --remove-port=3528/tcp firewall-cmd --reload ``` Warning: Reloading the firewall configuration may briefly interrupt network traffic. If removing the iiop-openjdk subsystem from the JBoss EAP configuration (standalone.xml or domain.xml), a full server restart is required, causing temporary service downtime. Caveats: Blocking port 3528 or disabling the IIOP subsystem will prevent legitimate remote clients from communicating over IIOP/CORBA.

Tracking

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Advisories

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History

Wed, 28 Oct 2026 17:45:00 +0000

Type Values Removed Values Added
Description when EAP runs with -secmgr, the openjdk-orb's JDKBridge honours attacker-supplied CDR codebase URLs during object unmarshalling on :3528, allowing an unauthenticated attacker to load and instantiate arbitrary classes from a remote URL in the server JVM before EJB security interceptors run.
Title Openjdk-orb: incomplete fix for cve-2026-15560,unauthed class loading via iiop in eap
First Time appeared Redhat
Redhat jboss Enterprise Application Platform
Weaknesses CWE-829
CPEs cpe:/a:redhat:jboss_enterprise_application_platform:7
cpe:/a:redhat:jboss_enterprise_application_platform:8
Vendors & Products Redhat
Redhat jboss Enterprise Application Platform
References
Metrics cvssV3_1

{'score': 8.1, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H'}


Subscriptions

Redhat Jboss Enterprise Application Platform
cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2026-10-28T17:30:13.626Z

Reserved: 2026-09-02T04:14:23.387Z

Link: CVE-2026-84725

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-10-28T18:17:20.420

Modified: 2026-10-28T18:17:20.563

Link: CVE-2026-84725

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-28T19:15:14Z

Weaknesses