High severity8.8NVD Advisory· Published Aug 11, 2026

CVE-2026-15555

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Red Hat/JBoss Marshallingllm-create

Patches

Vulnerability mechanics

References

access.redhat.com/security/cve/CVE-2026-15555nvd
bugzilla.redhat.com/show_bug.cginvd

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