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CVE-2021-28052: Hitachi Content Platform Information Disclosure Vulnerability

• Severity: medium (CVSS 4.9 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-09-26 · updated 2026-06-17
• Weakness: CWE-264

Description

A tenant administrator Hitachi Content Platform (HCP) may modify the configuration in another tenant without authorization, potentially allowing unauthorized access to data in the other tenant. Also, a tenant user (non-administrator) may view configuration in another tenant without authorization. This issue affects: Hitachi Vantara Hitachi Content Platform versions prior to 8.3.7; 9.0.0 versions prior to 9.2.3.

Affected products

• Hitach Vantara: before 8.3.7; from 9.0.0 before 9.2.3 — fixed in 8.3.7, 9.2.3

How to fix

Upgrade to a fixed version: Hitach Vantara 8.3.7, 9.2.3. Check the vendor advisory for mitigations.

References

• https://knowledge.hitachivantara.com/Security/HCP_Multitenancy_Vulnerability
• https://www.hitachi.com/hirt/hitachi-sec/2021/604.html
• https://knowledge.hitachivantara.com/Security/HCP_Multitenancy_Vulnerability
• https://www.hitachi.com/hirt/hitachi-sec/2021/604.html

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