CVE-2026-87234 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 low privileged attacker with network access via HTTP to compromise Oracle Hyperion Financial Management. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Oracle Hyperion Financial Management accessible data as well as unauthorized access to critical data or complete access to all Oracle Hyperion Financial Management accessible data. CVSS 3.1 Base Score 8.1 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N).
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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, specifically affecting version 11.2.26.0.000 and potentially other supported releases in that lineage. This flaw represents a critical weakness in the application's access control mechanisms, allowing for unauthorized manipulation or exfiltration of sensitive financial data. The vulnerability is characterized by its ease of exploitation, requiring only low-privileged credentials and network connectivity via HTTP to execute successfully against the target system.
From a technical perspective, this issue aligns with CWE-269 Improper Privilege Management and potentially CWE-862 Missing Authorization, as it permits an attacker who has already obtained basic user access to escalate their capabilities beyond what is intended by the security architecture. The attack vector involves interacting with the web-based interface over HTTP, which may also indicate a lack of mandatory encryption for sensitive administrative or data-access operations if HTTPS is not strictly enforced at all entry points. An attacker leveraging this flaw can bypass standard permission checks to perform actions that should be restricted to higher-level administrators or specific functional roles within the financial management workflow.
The operational impact of exploiting this vulnerability is severe, as indicated by a CVSS 3.1 Base Score of 8.1, which classifies it as High severity. The primary impacts are on Confidentiality and Integrity, with Availability remaining unaffected according to the provided vector string (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N). Successful exploitation enables an attacker to create, delete, or modify critical financial records, leading to potential data corruption that could distort financial reporting and decision-making processes. Furthermore, the vulnerability grants unauthorized access to sensitive data, allowing for complete exfiltration of proprietary financial information, trade secrets, or personally identifiable information stored within the Hyperion Financial Management database. This level of compromise can result in significant regulatory penalties under frameworks such as GDPR or SOX, alongside substantial reputational damage and loss of stakeholder trust.
In terms of threat modeling, this vulnerability facilitates actions consistent with MITRE ATT&CK techniques related to Credential Access and Data Exfiltration. An attacker would likely utilize the low-privilege account they already possess to probe for misconfigured endpoints or insecure direct object references that allow lateral movement within the application's data structures. The ability to modify critical data introduces risks of financial fraud, such as altering transaction amounts or creating fictitious entries to cover up embezzlement schemes over time without immediate detection.
Mitigation strategies must focus on both technical remediation and administrative controls. Oracle should be consulted immediately for the latest security patches that address this specific flaw in version 11.2.26.0.000, as vendor-provided updates are the most reliable method to resolve underlying code-level permission errors. In addition to patching, organizations must enforce strict network segmentation and ensure that all HTTP traffic is redirected or blocked at the firewall level for administrative interfaces, mandating HTTPS with strong certificate validation to prevent man-in-the-middle attacks that could further exploit this vulnerability. Access control policies should be reviewed to adhere to the principle of least privilege, ensuring that low-privileged users do not have unnecessary access to sensitive modules within Hyperion Financial Management. Regular auditing of user activities and log monitoring for anomalous data modification patterns can also help in early detection of exploitation attempts before significant damage occurs.