CVE-2026-87200 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 and unauthorized ability to cause a partial denial of service (partial DOS) of Oracle Hyperion Financial Management. CVSS 3.1 Base Score 8.2 (Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/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 critical security deficiency that permits unauthenticated attackers to exploit the application over standard HTTP network connections. The absence of required authentication checks for certain administrative or data-manipulation endpoints allows external actors with basic network access to bypass intended security controls. Such an architecture failure fundamentally undermines the trust boundary between the client and the server, enabling malicious entities to interact directly with sensitive system functions without valid credentials.
From a technical perspective, this vulnerability facilitates unauthorized creation, deletion, or modification of critical data within the Oracle Hyperion Financial Management environment. The lack of proper access control mechanisms means that an attacker can alter financial records, delete essential configuration files, or inject fraudulent transactions into the system. This capability directly impacts the integrity of the application's database and underlying storage systems. Furthermore, the vulnerability allows for unauthorized actions that lead to a partial denial of service condition. By flooding specific endpoints with malicious requests or manipulating resources in ways that exhaust server capacity, an attacker can degrade the availability of the financial management platform, disrupting business operations and preventing legitimate users from accessing critical financial data and reporting tools.
The operational impact of this vulnerability is severe due to its high base score of 8.2 on the CVSS v3.1 scale. The vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L) indicates that while confidentiality remains intact, integrity and availability are significantly compromised. In a financial management context, data integrity is paramount; any unauthorized modification to financial records can lead to inaccurate reporting, regulatory non-compliance, and significant reputational damage. Additionally, the partial denial of service capability means that organizations relying on this system for real-time financial analysis or month-end closing processes may face operational downtime. The ease of exploitation further exacerbates the risk, as no user interaction is required, allowing automated tools to target vulnerable instances across a network with minimal effort.
This vulnerability aligns closely with CWE-287, which describes Improper Authentication, and CWE-915, which pertains to Improper Control of Dynamically-Managed Code Resources if the denial-of-service aspect involves resource exhaustion through uncontrolled dynamic operations. In terms of offensive security frameworks, this exploit maps to MITRE ATT&CK technique T1068 Exploitation for Privilege Escalation or more accurately T1496 Resource Hijacking if used for DoS, but primarily it reflects unauthorized access patterns seen in T1133 External Remote Services. The lack of authentication on network-accessible services is a classic indicator of misconfigured web application security controls that fail to enforce identity verification before processing sensitive requests.
Mitigation strategies must focus on immediate remediation and long-term architectural improvements. Oracle should apply the latest available patches or updates for version 11.2.26.0.000 as soon as they are released, ensuring that all instances of Hyperion Financial Management are updated to a secure baseline. In the interim, organizations should implement network-level controls such as Web Application Firewalls (WAFs) configured with rulesets specifically designed to detect and block exploitation attempts against known vulnerable endpoints. Restricting access to HTTP ports used by Hyperion to trusted IP ranges via firewall rules can also reduce the attack surface significantly. Additionally, enforcing strict authentication requirements on all administrative interfaces and ensuring that sensitive data manipulation functions are behind proper authorization checks is essential. Regular security audits and penetration testing should be conducted to identify similar misconfigurations in other components of the Oracle Hyperion suite before they can be exploited by malicious actors seeking financial fraud or operational disruption.