CVE-2026-87239 in Hyperion Financial Management
Summary
by MITRE • 09/16/2026
Vulnerability in the Oracle Hyperion Financial Management product of Oracle Hyperion (component: Security). The supported version that is affected is 11.2.26.0.000. Easily exploitable vulnerability allows high privileged attacker with network access via HTTP to compromise Oracle Hyperion Financial Management. Successful attacks of this vulnerability can result in takeover of Oracle Hyperion Financial Management. CVSS 3.1 Base Score 7.2 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H).
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Analysis
by VulDB Data Team • 09/16/2026
The identified vulnerability resides within the Security component of Oracle Hyperion Financial Management version 11.2.26.0.000, representing a critical security flaw that compromises the integrity and confidentiality of financial data processing systems. This specific iteration of the software is susceptible to an easily exploitable attack vector that requires high-privileged access over network connections via HTTP. The presence of this vulnerability indicates a significant deficiency in how the application handles authentication or authorization checks for administrative functions, allowing individuals with elevated privileges to bypass intended security controls when interacting with the system through web-based interfaces.
From a technical perspective, the flaw enables an attacker who has already obtained high-level credentials and network access to execute arbitrary actions within the Oracle Hyperion Financial Management environment. The ease of exploitation suggests that the vulnerability does not require complex preconditions or user interaction beyond standard HTTP requests made by an authenticated administrator. This characteristic aligns with common patterns found in insecure direct object references or broken access control mechanisms, where the application fails to properly verify if a user has permission to perform specific administrative operations on targeted resources. The attack surface is primarily exposed through the web interface, making it accessible over internal networks or potentially external-facing deployments depending on network segmentation policies.
The operational impact of this vulnerability is severe, as successful exploitation results in complete takeover of the Oracle Hyperion Financial Management instance. This level of compromise allows an attacker to manipulate financial records, exfiltrate sensitive corporate data, and disrupt business continuity by altering system configurations or deleting critical datasets. The CVSS 3.1 base score of 7.2 reflects high impacts across confidentiality, integrity, and availability due to the privileged nature of the required initial access. While the requirement for a high-privileged attacker mitigates some risk compared to unauthenticated attacks, it does not eliminate the threat because insider threats or compromised administrative accounts remain significant vectors in enterprise environments. The ability to take over the system implies that all data processed by Hyperion Financial Management is at risk of unauthorized modification or disclosure.
In terms of industry standard classifications, this vulnerability maps closely to CWE-269 Improper Privilege Management and potentially CWE-862 Missing Authorization within the Common Weakness Enumeration framework. The attack methodology corresponds to ATT&CK technique T1078 Valid Accounts, specifically focusing on legitimate administrative credentials being abused for unauthorized access. Furthermore, if the takeover involves lateral movement or persistence mechanisms after initial compromise, it may also relate to techniques such as T1546 Event Triggered Execution or T1098 Account Manipulation. Understanding these mappings helps in aligning remediation efforts with broader security frameworks and threat intelligence models used by enterprise security operations centers.
Mitigation strategies must prioritize immediate patching of the Oracle Hyperion Financial Management software to the latest available version that addresses this specific flaw, as vendor-provided patches are typically designed to correct underlying code defects related to access control logic. In addition to applying updates, organizations should enforce strict network segmentation to limit HTTP access to administrative interfaces only from trusted management networks. Implementing multi-factor authentication for all privileged accounts adds a critical layer of defense against credential theft or misuse. Regular auditing of administrative activities and monitoring for anomalous behavior using SIEM solutions can help detect potential exploitation attempts early. Security teams should also review existing privilege assignments to ensure that the principle of least privilege is strictly enforced, reducing the blast radius in case an account is compromised.