CVE-2026-87177 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. 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 as well as unauthorized update, insert or delete access to some of Oracle Hyperion Financial Management accessible data. CVSS 3.1 Base Score 8.5 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N).
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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 system integrity violations. The nature of this weakness is characterized by its ease of exploitation, requiring only low-privileged credentials and network connectivity via HTTP protocols. An attacker with basic user-level privileges can leverage this vulnerability to bypass intended access controls, leading to significant compromise of the application's confidentiality and integrity guarantees.
From a technical perspective, the flaw enables an adversary to perform unauthorized read operations on critical data stored within the Oracle Hyperion Financial Management environment. Beyond mere information disclosure, the vulnerability also permits unauthorized modification of data through insert, update, or delete actions. This dual impact on both confidentiality and integrity suggests that the underlying security mechanism fails to properly validate user permissions before executing sensitive database commands. The use of HTTP as the attack vector indicates that this exploitation can occur over standard web connections without requiring complex network positioning or specialized tools, making it accessible to a broad range of threat actors who have obtained low-level credentials within the organization's network perimeter.
The operational impact of this vulnerability extends beyond the immediate application due to its potential for scope change. While technically rooted in Oracle Hyperion Financial Management, successful exploitation can significantly impact additional products integrated with or dependent on the same underlying infrastructure. This lateral movement capability amplifies the risk profile considerably, as a compromise in one module may lead to cascading failures across related financial reporting and planning systems. The CVSS 3.1 base score of 8.5 reflects this high severity, driven primarily by the High impact on Confidentiality and Low impact on Integrity, with no direct effect on Availability. This scoring underscores that while system uptime might remain unaffected, the trustworthiness and secrecy of financial records are severely compromised.
In terms of industry standard classifications, this vulnerability aligns closely with CWE-269 Improper Privilege Management or CWE-862 Missing Authorization, as it involves a failure to enforce proper access controls for low-privileged users. Furthermore, from the perspective of the MITRE ATT&CK framework, this behavior is consistent with techniques involving Valid Accounts and potentially Data Staged if the attacker intends to exfiltrate data after gaining unauthorized access. The ability to modify data also touches upon persistence or impact tactics depending on whether changes are made for continued access or malicious disruption.
Mitigation strategies must prioritize immediate patching of Oracle Hyperion Financial Management to version 11.2.26.0.000 or later, where this security flaw has been addressed by the vendor. In addition to applying patches, organizations should enforce strict network segmentation to limit HTTP access to only authorized management interfaces and implement robust identity and access management policies. Multi-factor authentication should be mandated for all administrative and privileged accounts to reduce the risk of credential theft leading to exploitation. Regular auditing of user permissions is essential to ensure that low-privileged users do not possess unnecessary write or delete rights on critical financial datasets, thereby reducing the blast radius in case of a successful compromise.