VDB

CVE-2026-15555

CVE-2026-15555 PUBLISHED CVSS 8.8 HIGH

Reported by redhat · Published August 11, 2026

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.

Risk Scores

CVSS 3.1
8.8
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Products

VendorProductVersions
Red HatRed Hat JBoss Enterprise Application Platform 7.4.25
Red HatRed Hat JBoss Enterprise Application Platform 7.4.25
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 70:2.16.0-22.redhat_00057.1.el7eap
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 70:2.3.14-11.SP11_redhat_00001.1.el7eap
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 70:1.5.26-2.Final_redhat_00001.1.el7eap
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 70:2.18.8-1.redhat_00003.1.el7eap
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 70:2.18.8-1.redhat_00003.1.el7eap
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 70:2.18.8-1.redhat_00003.1.el7eap
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 70:2.18.8-1.redhat_00003.1.el7eap
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 70:2.18.8-1.redhat_00003.1.el7eap
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 70:2.18.8-1.redhat_00003.1.el7eap
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 70:5.0.31-3.SP2_redhat_00001.1.el7eap
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 70:1.10.0-46.Final_redhat_00044.1.el7eap
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 70:4.1.135-1.Final_redhat_00001.1.el7eap
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 70:4.1.135-1.Final_redhat_00001.1.el7eap
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 70:2.5.5-30.SP12_redhat_00020.1.el7eap
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 70:2.5.5-24.SP12_redhat_00016.1.el7eap
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 70:2.2.40-2.SP3_redhat_00001.1.el7eap
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 70:7.4.25-2.GA_redhat_00001.1.el7eap
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 80:2.16.0-22.redhat_00057.1.el8eap

…and 346 more

Timeline

  • Aug 11, 2026 Coalition ESS Score
  • Aug 11, 2026 CVE Published
  • Aug 12, 2026 Distribution Patch
  • Aug 12, 2026 Security Advisory
  • Aug 12, 2026 Distribution Patch
  • Aug 12, 2026 Security Advisory
  • Aug 24, 2026 EPSS Score
  • Aug 28, 2026 EPSS Score
  • Sep 5, 2026 EPSS Score
  • Sep 9, 2026 EPSS Score
  • Sep 12, 2026 EPSS Score
  • Sep 16, 2026 EPSS Score

References

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