CVE-2026-15560: Openjdk-orb: unauthed class loading via iiop in eap

Severity: high (CVSS 8.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.8% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-08-11 · updated 2026-11-01
Weakness: CWE-829

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.

Affected products

Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7: all versions — fixed in 0:2.16.0-22.redhat_00057.1.el7eap
Red Hat JBoss Enterprise Application Platform 8.1.8.GA: all versions — fixed in 8.1.1.GA-redhat-00048
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10: all versions — fixed in 0:2.40.0-8.redhat_00024.1.el10eap
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8: all versions — fixed in 0:2.40.0-8.redhat_00024.1.el8eap
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9: all versions — fixed in 0:2.40.0-8.redhat_00024.1.el9eap

How to fix

Upgrade to a fixed version: Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 0:2.16.0-22.redhat_00057.1.el7eap; Red Hat JBoss Enterprise Application Platform 8.1.8.GA 8.1.1.GA-redhat-00048; Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10 0:2.40.0-8.redhat_00024.1.el10eap; Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8 0:2.40.0-8.redhat_00024.1.el8eap; Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9 0:2.40.0-8.redhat_00024.1.el9eap. Check the vendor advisory for mitigations.

References

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