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.

CVSS Vector

References

• https://access.redhat.com/errata/RHSA-2026:53644
• https://access.redhat.com/security/cve/CVE-2026-15555
• https://bugzilla.redhat.com/show_bug.cgi?id=2480637