CVE-2026-70911 in Hyperion Financial Management
Summary
by MITRE • 08/19/2026
Vulnerability in the Oracle Hyperion Financial Management product of Oracle Hyperion (component: Security). The supported version that is affected is 11.2.25.0.000. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Hyperion Financial Management. Successful attacks of this vulnerability can result in unauthorized read access to a subset of Oracle Hyperion Financial Management accessible data. CVSS 3.1 Base Score 5.3 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N).
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Analysis
by VulDB Data Team • 08/19/2026
The identified vulnerability resides within the Security component of Oracle Hyperion Financial Management, specifically affecting version 11.2.25.0.000 and potentially other supported releases in that lineage. This flaw represents a critical weakness in the application's access control mechanisms, allowing for unauthorized interaction with sensitive system resources without requiring prior authentication. The nature of this defect is particularly concerning because it does not require user interaction or complex exploitation techniques, making it accessible to any actor capable of establishing network connectivity via HTTP to the affected service. This ease of exploitation significantly lowers the barrier for entry, enabling even attackers with minimal technical sophistication to target vulnerable instances deployed in enterprise environments where Hyperion Financial Management is used for critical financial reporting and analysis tasks.
From a technical perspective, the vulnerability stems from an insufficient validation or enforcement of authentication requirements on specific HTTP endpoints within the application architecture. Typically, such flaws occur when API calls or web requests are processed without verifying that the requester has been properly authenticated against the central identity store. In this case, the lack of mandatory access control checks allows unauthenticated actors to query internal data structures and retrieve information that should be restricted to authorized users only. The attack vector is classified as network-accessible with low complexity, indicating that no special conditions or user actions are needed beyond sending a crafted HTTP request to the target server. This aligns closely with CWE-287, which describes Improper Authentication, where an actor fails to adequately prove their identity before being granted access to protected resources.
The operational impact of this vulnerability is primarily centered on data confidentiality rather than integrity or availability. Successful exploitation results in unauthorized read access to a subset of Oracle Hyperion Financial Management accessible data. While the scope remains limited to reading existing information and does not allow for modification or deletion, the exposure of financial data can have severe consequences for organizations relying on these systems for regulatory compliance, strategic decision-making, and internal auditing. Sensitive financial metrics, budgetary details, or proprietary forecasting models could be exfiltrated by malicious actors. This scenario maps directly to ATT&CK technique T1078, Valid Accounts, although in this specific instance, the attacker does not need valid credentials due to the authentication bypass nature of the flaw. It also relates to T1530, Data from Cloud Storage Object, if the underlying data is stored in accessible cloud buckets or similar structures exposed through the application interface.
The CVSS 3.1 base score of 5.3 reflects a medium severity level driven by the high availability and low complexity of the attack vector combined with the moderate impact on confidentiality. The vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N) confirms that while there is no impact to integrity or availability, the loss of confidential data is sufficient to warrant immediate attention. Organizations utilizing this version must recognize that even read-only access can be leveraged for social engineering attacks, competitive intelligence gathering, or as a stepping stone for further reconnaissance within the network perimeter. The lack of authentication requirement means that automated scanning tools could potentially discover and exploit these endpoints at scale across multiple organizations simultaneously.
Mitigation strategies should focus on immediate remediation through vendor-provided patches if available, ensuring that all instances are updated to a version where this security flaw has been addressed by Oracle Hyperion engineering teams. In the interim, network-level controls such as Web Application Firewalls (WAF) can be configured to block requests targeting known vulnerable endpoints or those exhibiting patterns consistent with unauthenticated access attempts. Additionally, strict firewall rules should restrict HTTP access to these services only from trusted internal subnets and administrative workstations, effectively reducing the attack surface by limiting network exposure. Regular security audits and penetration testing are recommended to identify similar misconfigurations in authentication flows across other enterprise applications. Monitoring logs for unusual spikes in unauthenticated requests can also serve as an early warning system for potential exploitation attempts before significant data loss occurs.