High severity8.8NVD Advisory· Published Aug 11, 2026· Updated Nov 1, 2026
CVE-2026-15555
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.
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LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
1Patches
Vulnerability mechanics
References
8- access.redhat.com/errata/RHSA-2026:53644nvd
- access.redhat.com/errata/RHSA-2026:53806nvd
- access.redhat.com/errata/RHSA-2026:70228nvd
- access.redhat.com/errata/RHSA-2026:70229nvd
- access.redhat.com/errata/RHSA-2026:70230nvd
- access.redhat.com/errata/RHSA-2026:70277nvd
- access.redhat.com/security/cve/CVE-2026-15555nvd
- bugzilla.redhat.com/show_bug.cginvd
News mentions
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