CVE-2026-15555 (GCVE-0-2026-15555)

Vulnerability from cvelistv5 – Published: 2026-08-11 08:49 – Updated: 2026-08-11 20:26
VLAI
Title
Jboss-marshalling-river: wildfly-clustering-infinispan-marshalling: jboss deserialization rce via unfiltered river unmarshaller
Summary
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.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
References
URL Tags
https://access.redhat.com/errata/RHSA-2026:53644 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2026-15555 vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2480637 issue-trackingx_refsource_REDHAT
Impacted products
Vendor Product Version
Red Hat Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 Unaffected: 0:2.16.0-22.redhat_00057.1.el7eap , < * (rpm)
    cpe:/a:redhat:jboss_enterprise_application_platform_els:7.4::el7
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Red Hat Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 Unaffected: 0:2.3.14-11.SP11_redhat_00001.1.el7eap , < * (rpm)
    cpe:/a:redhat:jboss_enterprise_application_platform_els:7.4::el7
Create a notification for this product.
Red Hat Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 Unaffected: 0:1.5.26-2.Final_redhat_00001.1.el7eap , < * (rpm)
    cpe:/a:redhat:jboss_enterprise_application_platform_els:7.4::el7
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Red Hat Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 Unaffected: 0:2.18.8-1.redhat_00003.1.el7eap , < * (rpm)
    cpe:/a:redhat:jboss_enterprise_application_platform_els:7.4::el7
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Red Hat Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 Unaffected: 0:5.0.31-3.SP2_redhat_00001.1.el7eap , < * (rpm)
    cpe:/a:redhat:jboss_enterprise_application_platform_els:7.4::el7
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Red Hat Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 Unaffected: 0:1.10.0-46.Final_redhat_00044.1.el7eap , < * (rpm)
    cpe:/a:redhat:jboss_enterprise_application_platform_els:7.4::el7
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Red Hat Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 Unaffected: 0:4.1.135-1.Final_redhat_00001.1.el7eap , < * (rpm)
    cpe:/a:redhat:jboss_enterprise_application_platform_els:7.4::el7
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Red Hat Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 Unaffected: 0:2.5.5-30.SP12_redhat_00020.1.el7eap , < * (rpm)
    cpe:/a:redhat:jboss_enterprise_application_platform_els:7.4::el7
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Red Hat Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 Unaffected: 0:2.5.5-24.SP12_redhat_00016.1.el7eap , < * (rpm)
    cpe:/a:redhat:jboss_enterprise_application_platform_els:7.4::el7
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Red Hat Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 Unaffected: 0:2.2.40-2.SP3_redhat_00001.1.el7eap , < * (rpm)
    cpe:/a:redhat:jboss_enterprise_application_platform_els:7.4::el7
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Red Hat Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 Unaffected: 0:7.4.25-2.GA_redhat_00001.1.el7eap , < * (rpm)
    cpe:/a:redhat:jboss_enterprise_application_platform_els:7.4::el7
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Red Hat Red Hat JBoss Enterprise Application Platform 7     cpe:/a:redhat:jboss_enterprise_application_platform:7
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Red Hat Red Hat JBoss Enterprise Application Platform 8     cpe:/a:redhat:jboss_enterprise_application_platform:8
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Red Hat Red Hat JBoss Enterprise Application Platform Expansion Pack     cpe:/a:redhat:jbosseapxp
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Date Public
2026-08-11 05:49
Show details on NVD website

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Enterprise Application Platform 8\", \"packageName\": \"wildfly-clustering-infinispan-marshalling\", \"collectionURL\": \"https://access.redhat.com/jbossnetwork/restricted/listSoftware.html\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/a:redhat:jbosseapxp\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat JBoss Enterprise Application Platform Expansion Pack\", \"packageName\": \"jboss-marshalling-river\", \"collectionURL\": \"https://access.redhat.com/jbossnetwork/restricted/listSoftware.html\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/a:redhat:jbosseapxp\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat JBoss Enterprise Application Platform Expansion Pack\", \"packageName\": \"wildfly-clustering-infinispan-marshalling\", \"collectionURL\": \"https://access.redhat.com/jbossnetwork/restricted/listSoftware.html\", \"defaultStatus\": \"affected\"}], \"timeline\": [{\"lang\": \"en\", \"time\": \"2026-05-21T20:47:36.888Z\", \"value\": \"Reported to Red Hat.\"}, {\"lang\": \"en\", \"time\": \"2026-08-11T05:49:54.473Z\", \"value\": \"Made public.\"}], \"datePublic\": \"2026-08-11T05:49:54.473Z\", \"references\": [{\"url\": \"https://access.redhat.com/errata/RHSA-2026:53644\", \"name\": \"RHSA-2026:53644\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/security/cve/CVE-2026-15555\", \"tags\": [\"vdb-entry\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://bugzilla.redhat.com/show_bug.cgi?id=2480637\", \"name\": \"RHBZ#2480637\", \"tags\": [\"issue-tracking\", \"x_refsource_REDHAT\"]}], \"x_generator\": {\"engine\": \"cvelib 1.8.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"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 \\u2014 enabling RCE via deserialization gadget chains on every cluster node.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-502\", \"description\": \"Deserialization of Untrusted Data\"}]}], \"providerMetadata\": {\"orgId\": \"53f830b8-0a3f-465b-8143-3b8a9948e749\", \"shortName\": \"redhat\", \"dateUpdated\": \"2026-08-11T20:26:20.807Z\"}, \"x_redhatCweChain\": \"CWE-502: Deserialization of Untrusted Data\"}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-15555\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-08-11T20:26:20.807Z\", \"dateReserved\": \"2026-07-13T04:57:54.377Z\", \"assignerOrgId\": \"53f830b8-0a3f-465b-8143-3b8a9948e749\", \"datePublished\": \"2026-08-11T08:49:40.634Z\", \"assignerShortName\": \"redhat\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

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Detection rules are retrieved from Rulezet.

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