CVE-2026-87170 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 unauthenticated attacker with network access via HTTP to compromise Oracle Hyperion Financial Management. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Oracle Hyperion Financial Management accessible data as well as unauthorized access to critical data or complete access to all Oracle Hyperion Financial Management accessible data. CVSS 3.1 Base Score 9.1 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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 that lineage. This flaw represents a critical security deficiency that permits unauthenticated attackers to compromise the integrity and confidentiality of the application environment. The attack vector is network-based via HTTP, which significantly lowers the barrier for exploitation as it does not require physical access or complex social engineering tactics beyond initial network reachability. The absence of required authentication prior to exploiting this flaw indicates a fundamental failure in the security architecture's access control mechanisms, allowing any entity with connectivity to the service port to interact with vulnerable endpoints without presenting valid credentials.
From a technical perspective, the vulnerability enables unauthorized creation, deletion, or modification of critical data within the Oracle Hyperion Financial Management system. This capability suggests that the underlying code fails to properly validate user privileges before executing administrative or sensitive operations. Such behavior is characteristic of broken access control flaws where the application relies on client-side checks or lacks server-side verification for role-based permissions. An attacker leveraging this flaw can manipulate financial records, alter configuration settings, or remove essential data structures, thereby undermining the reliability and accuracy of financial reporting processes that depend on this platform. The impact extends beyond mere data alteration; it also includes unauthorized access to critical data, leading to complete exposure of sensitive financial information stored within the system.
The operational impact of this vulnerability is severe due to its high CVSS 3.1 Base Score of 9.1, which classifies it as Critical severity. The vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N) highlights that while availability remains unaffected, both confidentiality and integrity impacts are high. This means an attacker can read all accessible data and modify any critical information without detection or restriction from the system's native security controls. For financial institutions relying on Oracle Hyperion for enterprise performance management and reporting, such a breach could lead to significant regulatory non-compliance, reputational damage, and potential legal liabilities due to the exposure of proprietary financial strategies and client data. The lack of user interaction requirements further amplifies the risk by allowing automated exploitation tools to target this vulnerability at scale across vulnerable instances on the internet or internal networks.
In terms of industry standard classifications, this vulnerability aligns with CWE-287 Improper Authentication and CWE-918 Server-Side Request Forgery (SSRF) if the flaw involves manipulating server requests, though primarily it reflects CWE-862 Missing Authorization which allows unauthenticated users to perform privileged actions. Within the MITRE ATT&CK framework, this behavior corresponds to techniques involving Initial Access through network service exploitation and Privilege Escalation or Defense Evasion depending on how the attacker maintains persistence after gaining initial foothold via data modification. The ability to delete or modify critical data also touches upon Impact categories related to Data Manipulation, which is a common tactic in ransomware attacks or insider threat scenarios where an actor seeks to disrupt business operations by corrupting foundational datasets.
Mitigation strategies must prioritize immediate remediation through the application of vendor-provided patches that address the specific security flaw in version 11.2.26.0.000 and subsequent updates. Organizations should verify their current deployment versions against Oracle's official support matrix to ensure they are running a patched release. In cases where patching is not immediately feasible, network-level controls such as Web Application Firewalls (WAF) can be configured to block requests targeting the vulnerable endpoints or those exhibiting patterns consistent with exploitation attempts for unauthenticated access. Additionally, implementing strict IP whitelisting for administrative interfaces and ensuring that HTTP traffic is terminated by a secure proxy layer can reduce the attack surface. Regular security audits and penetration testing focused on authentication bypasses are recommended to identify similar weaknesses in other components of the Hyperion suite before they can be exploited by malicious actors seeking financial data theft or system disruption.