CVE-2026-70888 in Hyperion Data Relationship Management
Summary
by MITRE • 08/19/2026
Vulnerability in the Oracle Hyperion Data Relationship Management product of Oracle Hyperion (component: Access and security). The supported version that is affected is 11.2.25.0.000. Difficult to exploit vulnerability allows high privileged attacker with network access via HTTP to compromise Oracle Hyperion Data Relationship Management. Successful attacks of this vulnerability can result in takeover of Oracle Hyperion Data Relationship Management. CVSS 3.1 Base Score 6.6 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H).
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Analysis
by VulDB Data Team • 08/19/2026
The identified vulnerability resides within the Access and security component of Oracle Hyperion Data Relationship Management, specifically affecting version 11.2.25.0.000. This flaw represents a critical weakness in the application's authentication or authorization mechanisms, allowing for unauthorized access to sensitive administrative functions. The nature of this defect suggests that while the vulnerability is technically present and exploitable under specific conditions, it requires a high level of privilege on the part of the attacker prior to exploitation. This indicates that the issue likely stems from improper validation of user roles or permissions within the HTTP-based interface used for managing data relationships. Such architectural oversights are common in enterprise resource planning and financial management systems where complex role hierarchies can lead to logic errors if not rigorously tested against edge cases involving privilege escalation paths.
From a technical perspective, the vulnerability allows an attacker with network access via HTTP to compromise the system by leveraging difficult-to-exploit conditions that nonetheless result in complete control over the application environment. The requirement for high privileged access suggests that this is likely an authorization bypass or improper access control flaw rather than a remote code execution bug triggered from unauthenticated users. An attacker who has already obtained elevated credentials through social engineering, credential theft, or insider threat scenarios can exploit this specific weakness to escalate their capabilities further or maintain persistent access without detection. The use of HTTP as the attack vector highlights potential issues with transport layer security configurations or the exposure of administrative interfaces over standard web protocols without sufficient additional safeguards like multi-factor authentication or IP whitelisting for sensitive endpoints.
The operational impact of successfully exploiting this vulnerability is severe, resulting in a complete takeover of Oracle Hyperion Data Relationship Management. This level of compromise grants the attacker full read and write access to all data managed by the system, including financial models, planning assumptions, and organizational hierarchies. The CVSS 3.1 base score of 6.6 reflects significant impacts on confidentiality, integrity, and availability due to the vector being network-accessible but requiring high privileges and having a relatively complex exploitation process. In practical terms, this means that sensitive financial data could be exfiltrated for competitive intelligence or blackmail purposes, critical business logic could be altered to manipulate financial reporting outcomes, and system availability could be disrupted through destructive actions taken by the compromised account. The integrity impact is particularly concerning in financial contexts where accurate data representation is paramount for regulatory compliance and stakeholder trust.
This vulnerability aligns with several well-known industry standards regarding security flaws. It corresponds closely to CWE-269 Improper Privilege Management, as it involves a failure to enforce appropriate access controls for privileged functions. Additionally, the exploitation method relates to ATT&CK technique T1078 Valid Accounts, specifically when combined with lateral movement or persistence mechanisms enabled by the gained administrative control. The network-based nature of the attack via HTTP also touches upon CWE-319 Cleartext Transmission of Sensitive Information if sensitive data is transmitted without adequate encryption during the exploitation process, although the primary issue remains the authorization logic itself. Understanding these mappings helps in categorizing the risk within broader security frameworks and ensures that remediation efforts address not just this specific instance but similar architectural weaknesses across other enterprise applications.
Mitigation strategies must focus on both immediate containment and long-term architectural improvements. Immediately, organizations should ensure that administrative interfaces for Oracle Hyperion are not exposed directly to untrusted networks via HTTP. Implementing a reverse proxy with strict access control lists is essential to restrict entry points only to authorized management subnets or virtual private network connections. Enforcing HTTPS exclusively eliminates the risk associated with cleartext transmission and ensures integrity of communications during authentication processes. Furthermore, implementing multi-factor authentication for all administrative accounts adds a critical layer of defense that mitigates the impact of stolen high-privilege credentials which might be used to trigger this vulnerability. Regular audits of user roles and permissions are necessary to ensure that no account possesses more privileges than strictly required for its function, adhering to the principle of least privilege.
Long-term remediation requires a comprehensive review of the access control logic within the Data Relationship Management application. Developers should implement robust input validation and strict authorization checks at every entry point where administrative actions are performed. Utilizing automated static analysis tools can help identify similar patterns in custom code or configuration scripts associated with the Hyperion environment. Additionally, deploying Web Application Firewalls configured to detect anomalous behavior related to privilege escalation attempts can provide an additional layer of monitoring and protection. Organizations should also establish a routine patching schedule aligned with Oracle Critical Patch Update cycles to ensure that known vulnerabilities are addressed promptly as security patches become available. Continuous integration of security testing into the development lifecycle will help prevent similar flaws from being introduced in future updates or customizations, thereby strengthening the overall resilience of the financial management infrastructure against sophisticated threats.