Bug 2483131 (CVE-2026-15560)

Summary: CVE-2026-15560 openjdk-orb: unauthed class loading via IIOP in EAP
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedCC: anujha, asoldano, bbaranow, bmaxwell, bstansbe, dlofthou, istudens, ivassile, iweiss, mosmerov, msvehla, nwallace, pberan, pesilva, pjindal, pmackay, rstancel, security-response-team, smaestri, thjenkin, vdosoudi
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
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Fixed In Version: Doc Type: ---
Doc Text:
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.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:

Description OSIDB Bzimport 2026-05-29 00:28:08 UTC 
original reported in: https://docs.google.com/document/d/1Rf4NtLudECimDNy8F9clUblm6Avx8_yF/edit 

Remote Class Loading — openjdk-orb JDKBridge honours CDR codebase URL under -secmgr (pre-auth :3528) (JBoss EAP)

Pre-auth remote class loading via IIOP: 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.
findings/jboss-eap_44.md
Comment 1 errata-xmlrpc 2026-08-11 16:37:39 UTC 
This issue has been addressed in the following products:

  Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7

Via RHSA-2026:53644 https://access.redhat.com/errata/RHSA-2026:53644
Comment 2 errata-xmlrpc 2026-08-11 17:42:27 UTC 
This issue has been addressed in the following products:

  Red Hat JBoss Enterprise Application Platform 7.4.25

Via RHSA-2026:53806 https://access.redhat.com/errata/RHSA-2026:53806