CVE-2026-87237 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. Difficult to exploit vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle Hyperion Financial Management. Successful attacks of this vulnerability can result in takeover of Oracle Hyperion Financial Management. CVSS 3.1 Base Score 7.5 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H).
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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 version 11.2.26.0.000, representing a critical risk to organizations relying on this enterprise performance management platform for financial reporting and analysis. This flaw is characterized by its difficulty in exploitation, which classifies it as having high attack complexity according to standard vulnerability scoring methodologies. Despite the elevated barrier to entry for an attacker, the potential consequences of a successful exploit are severe, allowing a low-privileged user with network access via HTTP to achieve complete takeover of the Oracle Hyperion Financial Management application environment. This level of compromise indicates that the underlying security controls fail to properly enforce privilege boundaries or validate input in critical authentication and authorization pathways, leading to unauthorized elevation of privileges or remote code execution capabilities within the context of the application server.
From a technical perspective, this vulnerability aligns with CWE-269 Improper Privilege Management and potentially CWE-78 OS Command Injection if the takeover involves executing arbitrary commands on the host system. The ability for an attacker to compromise the entire management suite suggests that the security architecture lacks sufficient isolation between user roles or fails to sanitize inputs processed by backend services accessible over HTTP. While the vulnerability is difficult to exploit, this difficulty likely stems from specific environmental dependencies, complex state requirements, or the need for precise timing and payload construction rather than a fundamental lack of access vectors. The presence of network accessibility via HTTP indicates that the attack surface is exposed to internal networks or potentially external interfaces if not properly segmented by firewalls or web application firewalls.
The operational impact of this vulnerability is substantial, as reflected in its CVSS 3.1 Base Score of 7.5, which denotes a High severity rating. The vector string (CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H) reveals that the attack originates from a network location with high complexity but requires only low privileges and no user interaction to succeed. Crucially, the scope remains unchanged while confidentiality, integrity, and availability impacts are all rated as High. This means that an attacker can not only read sensitive financial data stored within Hyperion Financial Management but also modify critical configurations or reports, thereby undermining the integrity of organizational decision-making processes. Furthermore, the ability to take over the application may lead to denial-of-service conditions by disrupting services for other legitimate users who depend on real-time financial insights and reporting capabilities.
In terms of threat modeling, this vulnerability maps to MITRE ATT&CK techniques related to Initial Access via valid accounts if low-privilege credentials are compromised, followed by Privilege Escalation to gain administrative control over the application layer. It may also involve Defense Evasion tactics where the attacker manipulates security logs or configurations to maintain persistence without detection. Organizations must recognize that even vulnerabilities deemed difficult to exploit can be weaponized in targeted attacks against high-value targets such as financial management systems, where the data sensitivity justifies significant effort from sophisticated threat actors.
Mitigation strategies should prioritize immediate patching if Oracle has released a specific update addressing this security flaw for version 11.2.26.0.000. In cases where patching is not immediately feasible, network segmentation becomes critical to restrict HTTP access to the Hyperion Financial Management servers only from trusted application tiers or administrative workstations. Implementing strict input validation and output encoding at the web server level can help mitigate certain injection vectors associated with privilege escalation flaws. Additionally, enforcing multi-factor authentication for all user accounts, including low-privileged ones, adds a layer of defense that could prevent attackers from leveraging stolen credentials to initiate the complex exploitation chain required by this vulnerability. Regular security audits and penetration testing focused on role-based access control mechanisms are recommended to identify similar weaknesses in privilege management across the enterprise application portfolio.