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CVE-2026-15555

A flaw was found in JBoss marshalling.

Impact

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.

Affected products

VendorProductAffected versions
Red HatRed Hat JBoss Enterprise Application Platform 8.1 For RHEL 9
Versions patch: 0:3.0.22-1.Final_redhat_00001.1.el9eap, patch: 0:3.2.2-1.redhat_00001.1.el9eap, patch: 0:1.85.0-1.redhat_00001.1.el9eap, patch: 0:2.40.0-8.redhat_00024.1.el9eap, patch: 0:2.0.18-1.redhat_00001.1.el9eap, patch: 0:4.0.5-1.redhat_00001.1.el9eap
Red HatRed Hat JBoss Enterprise Application Platform 8.1 For RHEL 8
Versions patch: 0:2.25.4-1.redhat_00003.1.el8eap, patch: 0:4.1.7-1.SP1_redhat_00001.1.el8eap, patch: 0:8.1.1-12.GA_redhat_00048.1.el8eap, patch: 0:8.1.8-9.GA_redhat_00006.1.el8eap, patch: 0:3.6.3-1.Final_redhat_00001.1.el8eap, patch: 0:4.0.11-2.SP1_redhat_00001.1.el8eap
Red HatRed Hat JBoss Enterprise Application Platform 8.1 For RHEL 10
Versions patch: 0:2.25.4-1.redhat_00003.1.el10eap, patch: 0:4.0.7-4.redhat_00001.1.el10eap, patch: 0:9.37.4-1.redhat_00001.1.el10eap, patch: 0:3.0.22-1.Final_redhat_00001.1.el10eap, patch: 0:4.1.5-5.redhat_00008.1.el10eap, patch: 0:2.2.0-1.Final_redhat_00001.1.el10eap
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS On RHEL 7
Versions patch: 0:5.0.31-3.SP2_redhat_00001.1.el7eap, patch: 0:2.16.0-22.redhat_00057.1.el7eap, patch: 0:2.5.5-30.SP12_redhat_00020.1.el7eap, patch: 0:2.2.40-2.SP3_redhat_00001.1.el7eap, patch: 0:1.5.26-2.Final_redhat_00001.1.el7eap, patch: 0:2.18.8-1.redhat_00003.1.el7eap
Red HatRed Hat JBoss Enterprise Application Platform 8.1.8.GA
Version patch: 5.0.13.Final-redhat-00001

Weakness classification

CWE-502

References