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CVE-2026-15555

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

Published: Aug 11, 2026Updated: Sep 22, 2026 Sources: CVE List NVDCWE-502
8.8HIGH
NVD MITRE
EPSS Score
0.3%
Top 74.9%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available
Self-Check
Not available

Description

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:AAC:LPR:NUI:NS:UC:HI:HA:H
Exploitability
AV:AAttack Vector
Adjacent
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-502

Affected Products

Red Hat
commercial·US
Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7On-prem
Enterprise Software / erp
Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 8On-prem
Enterprise Software / erp
Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 9On-prem
Enterprise Software / erp
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10On-prem
Operating Systems / linux-distro
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8On-prem
Operating Systems / linux-distro
Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9On-prem
Operating Systems / linux-distro
Red Hat JBoss Enterprise Application Platform Expansion PackOn-premOS
Operating Systems / linux-distro

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.
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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

3 techniques
Execution
Initial Access
View detailed technique mapping

References

https://access.redhat.com/errata/RHSA-2026:53644
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:53645
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:53646
access.redhat.com
and 7 more references View all →

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