CVE-2026-87236 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 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 7.1 (Confidentiality and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/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 that lineage. This flaw represents a significant security deficiency that allows for unauthorized access to critical data or complete compromise of all accessible information within the application environment. The nature of this vulnerability is characterized by its ease of exploitation, requiring only low-privileged credentials from an attacker who has network-level access via HTTP protocols. This accessibility profile suggests that the issue likely stems from insufficient input validation, improper authentication checks, or broken access control mechanisms inherent in how the security module processes requests over standard web interfaces.
From a technical perspective, the vulnerability enables an adversary to bypass expected authorization boundaries without requiring high-level administrative privileges or complex social engineering tactics such as user interaction. The reliance on HTTP rather than HTTPS for exploitation vectors may indicate that the flaw is triggered by unencrypted traffic manipulation or header injection techniques that exploit weaknesses in session management or request parsing logic within the Hyperion Financial Management architecture. Such flaws are frequently categorized under CWE-287, which denotes Improper Authentication, or CWE-862, Missing Authorization, depending on whether the breach involves bypassing login mechanisms or accessing resources without proper permission checks. The low attack complexity and absence of user interface requirements further classify this as a straightforward remote code execution or data exfiltration vector that can be automated by threat actors scanning for vulnerable instances.
The operational impact of successfully exploiting this vulnerability is severe, encompassing both confidentiality and availability disruptions. On the confidentiality front, attackers gain unauthorized access to sensitive financial data, which may include proprietary budgets, forecasts, transactional records, and strategic planning documents housed within Oracle Hyperion Financial Management. This exposure violates core security principles regarding data integrity and privacy, potentially leading to significant regulatory penalties under frameworks such as GDPR or SOX if personal or financial data is compromised. Furthermore, the vulnerability allows for a partial denial of service condition, meaning that attackers can degrade system performance or render specific functionalities unavailable by exhausting resources through malicious requests. This dual impact on confidentiality and availability aligns with CVSS 3.1 scoring metrics where high confidence in data loss and low-to-medium severity in service disruption are combined to yield a base score of 7.1.
In the context of modern threat intelligence frameworks, this vulnerability maps directly to MITRE ATT&CK techniques involving Initial Access via valid accounts or exploiting public-facing applications for privilege escalation. Attackers leveraging this flaw would likely engage in reconnaissance followed by exploitation using automated tools designed to probe web application firewalls and authentication endpoints. The ability to cause partial denial of service also suggests potential abuse vectors related to resource exhaustion, which falls under the Impact category within ATT&CK methodologies. Organizations relying on Oracle Hyperion for critical financial operations must recognize that this vulnerability exposes them to both data theft and operational disruption risks simultaneously.
Mitigation strategies should prioritize immediate patching to the latest available version of Oracle Hyperion Financial Management as recommended by vendor security advisories. In cases where patching is not immediately feasible, network-level controls such as Web Application Firewalls can be configured to detect and block patterns associated with this specific exploitation technique, particularly those targeting HTTP request anomalies or unauthorized access attempts against sensitive endpoints. Additionally, enforcing strict HTTPS-only policies ensures that any potential interception of credentials during authentication processes is mitigated through encryption, although it does not resolve the underlying application logic flaw. Access control lists should be reviewed to ensure least-privilege principles are strictly enforced, limiting the blast radius if a low-privileged account is compromised. Regular vulnerability scanning and penetration testing focused on web application security will help identify similar weaknesses before they can be exploited by malicious actors seeking financial data or aiming to disrupt business continuity through denial of service attacks.