CVE-2026-15555

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 v3 8.8 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector ADJACENT_NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://access.redhat.com/errata/RHSA-2026:53644
https://access.redhat.com/errata/RHSA-2026:53806
https://access.redhat.com/security/cve/CVE-2026-15555
https://bugzilla.redhat.com/show_bug.cgi?id=2480637

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-11 09:17

Updated : 2026-08-24 12:16

NVD link : CVE-2026-15555

Mitre link : CVE-2026-15555

CVE.ORG link : CVE-2026-15555

JSON object : View

Products Affected

No product.

CWE

CWE-502

Deserialization of Untrusted Data

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The Infinispan session replication path deserializes replicated session data via the JBoss Marshalling River unmarshaller with no class filtering \u2014 enabling RCE via deserialization gadget chains on every cluster node."}], "lastModified": "2026-08-24T12:16:48.437", "sourceIdentifier": "secalert@redhat.com"}