CVE-2026-87233 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. While the vulnerability is in Oracle Hyperion Financial Management, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle Hyperion Financial Management accessible data and unauthorized ability to cause a partial denial of service (partial DOS) of Oracle Hyperion Financial Management. CVSS 3.1 Base Score 7.6 (Confidentiality and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:L).
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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 the suite. This flaw represents a critical security deficiency that allows for unauthorized access to sensitive financial data and disrupts system availability. The nature of this vulnerability is characterized by its ease of exploitation, requiring only network accessibility via HTTP protocols. However, it does demand high-level privileges on the target system prior to execution, indicating that an attacker must already possess significant authenticated access or have compromised a privileged account within the Oracle Hyperion environment. This prerequisite highlights the importance of strict identity and access management controls as a primary defense layer against such threats.
From a technical perspective, the vulnerability enables a high-privileged attacker with network connectivity through HTTP to compromise the integrity and confidentiality of the application's data stores. The operational impact is severe, granting the adversary unauthorized access to critical financial records that are central to organizational decision-making processes. Beyond mere data exfiltration, the flaw also permits actions that lead to a partial denial of service condition. This means that while complete system shutdown may not be guaranteed, the functionality and responsiveness of Oracle Hyperion Financial Management can be significantly degraded, impacting business continuity for organizations relying on real-time or near-real-time financial reporting capabilities. The scope change noted in the advisory suggests that exploiting this vulnerability could have cascading effects on other integrated products within the broader Oracle ecosystem, amplifying the potential blast radius beyond a single application instance.
The severity of this issue is quantified by a CVSS 3.1 Base Score of 7.6, which classifies it as High severity. This score reflects significant impacts on both Confidentiality and Availability, with no direct impact on Integrity according to the provided vector string (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:L). The Attack Vector of Network indicates remote exploitability without physical access, while Low Attack Complexity suggests that specialized conditions or difficult-to-execute techniques are not required for a successful attack. The requirement for High Privileges aligns with CWE-269, Improper Privilege Management, as the vulnerability likely stems from insufficient validation of user roles and permissions when processing HTTP requests. Furthermore, the potential for denial of service relates to CWE-400, Uncontrolled Resource Consumption, where malicious inputs or actions exhaust system resources such as memory or CPU cycles associated with specific financial calculations or data retrieval operations.
In terms of threat modeling, this vulnerability aligns with MITRE ATT&CK techniques involving Initial Access and Impact phases. Specifically, it relates to Valid Accounts (T1078) for the initial foothold via high privileges, followed by Data Staged (T1560) or Exfiltration Over Alternative Protocol if data is stolen, and Service Stop (T1499) or Resource Hijacking (T1496) in the context of denial-of-service impacts. The cross-product impact implies lateral movement capabilities within the enterprise environment, making it a significant risk for organizations with interconnected Oracle deployments. Attackers leveraging this flaw could pivot from financial data theft to broader system compromise, exploiting trust relationships between different modules or services managed by Hyperion Financial Management.
Mitigation strategies must focus on both immediate remediation and long-term architectural hardening. The primary action is the application of vendor-supplied patches that address the specific security flaws in version 11.2.26.0.000 and subsequent affected versions. Organizations should prioritize patching based on risk assessment, given the high severity score and network accessibility. In addition to patching, implementing strict access control policies is essential. This includes enforcing the principle of least privilege, ensuring that only necessary personnel have administrative or high-privileged accounts within Hyperion Financial Management. Multi-factor authentication should be mandated for all privileged logins to reduce the risk of credential compromise leading to exploitation.
Network segmentation and web application firewalls can provide an additional layer of defense by restricting HTTP access to authorized IP ranges and inspecting traffic patterns for anomalies indicative of denial-of-service attempts or data exfiltration efforts. Regular security audits and penetration testing should be conducted to identify similar privilege escalation flaws in other components of the Oracle Hyperion suite. Monitoring tools must be configured to alert on unusual spikes in resource consumption or unauthorized access attempts, enabling rapid incident response before significant damage occurs. By combining timely patching with robust identity governance and network controls, organizations can effectively mitigate the risks associated with this vulnerability and maintain the integrity and availability of their financial management infrastructure.