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Cosminexus Component Container EUVDEUVD-2026-72656

| CVE-2026-71376 CRITICAL
OS Command Injection (CWE-78)
2026-09-08 Hitachi GHSA-84vf-8fgj-wv3v
9.8
CVSS 3.1 · Vendor: Hitachi
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Severity by source

Vendor (Hitachi) PRIMARY
9.8 CRITICAL
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
vuln.today AI
9.8 CRITICAL

Vendor vector is internally consistent with an unauthenticated network-reachable OS command injection yielding full host impact; AV:N/AC:L/PR:N/UI:N and C:H/I:H/A:H are retained absent evidence of auth or config gating.

3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Primary rating from Vendor (Hitachi).

CVSS VectorVendor: Hitachi

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

3
Patch available
Sep 08, 2026 - 09:01 EUVD
Analysis Generated
Sep 08, 2026 - 09:01 vuln.today
CVE Published
Sep 08, 2026 - 08:02 cve.org
CRITICAL 9.8

DescriptionCVE.org

OS command injection vulnerability in Cosminexus Component Container.

This issue affects Cosminexus Component Container: from 11-70-01 before 11-70-03, from 11-60 before 11-60-03, from 11-50 through 11-50-03, from 11-40 through 11-40-03, from 11-30 through 11-30-08, from 11-20 before 11-20-10, from 11-10 through 11-10-11, from 11-00 before 11-00-13, from 09-87 before 09-87-10, from 09-80 before 09-80-05, from 09-70 before 09-70-28, from 09-50 through 09-50-22, and from 09-00 through 09-00-18.

AnalysisAI

OS command injection in Hitachi Cosminexus Component Container - the application-server/EJB container within Hitachi Cosminexus/uCosminexus Application Server - allows remote attackers to inject and execute arbitrary operating-system commands (CWE-78). The flaw spans a broad set of legacy and current branches from 09-00 through 11-70 and carries a CVSS 9.8 (AV:N/AC:L/PR:N/UI:N) rating, implying unauthenticated network reachability with full confidentiality, integrity, and availability impact. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
technique details hidden
Delivery
technique details hidden
Exploit
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Execution
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Impact
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Vulnerability AssessmentAI

Exploitation The CVSS vector (AV:N/AC:L/PR:N/UI:N) indicates no special conditions are required - network-reachable, unauthenticated exploitation without user interaction against affected builds of Hitachi Cosminexus Component Container (versions from 09-00 through 11-70 as listed). … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The signals are largely one-directional and severe: the vendor-supplied CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:N, C:H/I:H/A:H, base 9.8) describes an unauthenticated, low-complexity, network-reachable command injection with total system impact - the archetype of a high-priority flaw. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario Full exploit scenario with step-by-step reproduction available after sign-in.
Remediation Upgrade to the fixed per-branch release identified in Hitachi advisory hitachi-sec-2026-132 (https://www.hitachi.com/products/it/software/security/info/vuls/hitachi-sec-2026-132/index.html): the version boundaries in the affected list imply patched builds at or above 11-70-03, 11-60-03, 11-20-10, 11-00-13, 09-87-10, 09-80-05, and 09-70-28 for those branches, and operators on 11-50/11-40/11-30/11-10/09-50/09-00 branches (which show 'through' the latest listed patch level) should confirm the fixed level directly with Hitachi since a released fix version for those lines is not explicitly enumerated in the available data. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 24 hours: Conduct rapid inventory of all Cosminexus Application Server instances across production, development, and staging environments and map their network accessibility and data criticality. …

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EUVD-2026-72656 vulnerability details – vuln.today

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