High 8.8Published Aug 11, 2026

CVE-2026-15555Jboss-marshalling-river: wildfly-clustering-infinispan-marshalling: jboss deserialization rce via unfiltered river unmarshaller

Updated under an hour ago (Oct 27, 2026, 9:00 PM ET)

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It affects Red Hat JBoss Enterprise Application Platform 7.4.25 and 2 other products. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for Red Hat JBoss Enterprise Application Platform 7.4.25

Exploited in the last 30 days

A flaw was found in JBoss marshalling. The Infinispan session replication path deserializes replicated session data via the JBoss Marshalling River unmarshaller with no class filtering — enabling RCE via deserialization gadget chains on every cluster node.

CVSS: 8.8 HIGH (v3.1, CNA)CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-502
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: redhat
NVD analysis: Awaiting Analysis
Record last updated: Oct 20, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Red Hat Red Hat JBoss Enterprise Application Platform 7.4.25 redhat:jboss_enterprise_application_platform	7.4	CNA record
Red Hat Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 redhat:jboss_enterprise_application_platform_els	from 0:2.16.0-22.redhat_00057.1.el7eap not affected	CNA record
Red Hat Red Hat JBoss Enterprise Application Platform Expansion Pack redhat:jbosseapxp	All versions	CNA record

References

References

https://access.redhat.com/errata/RHSA-2026:53644	vendor-advisory, x-refsource-redhat
https://access.redhat.com/errata/RHSA-2026:53645	vendor-advisory, x-refsource-redhat
https://access.redhat.com/errata/RHSA-2026:53646	vendor-advisory, x-refsource-redhat
https://access.redhat.com/errata/RHSA-2026:53806	vendor-advisory, x-refsource-redhat
https://access.redhat.com/errata/RHSA-2026:70228	vendor-advisory, x-refsource-redhat
https://access.redhat.com/errata/RHSA-2026:70229	vendor-advisory, x-refsource-redhat
https://access.redhat.com/errata/RHSA-2026:70230	vendor-advisory, x-refsource-redhat
https://access.redhat.com/errata/RHSA-2026:70277	vendor-advisory, x-refsource-redhat
https://access.redhat.com/security/cve/CVE-2026-15555	vdb-entry, x-refsource-redhat
https://bugzilla.redhat.com/show_bug.cgi?id=2480637	issue-tracking, x-refsource-redhat

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.