CVE-2026-87205 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 access to critical data or complete access to all Oracle Hyperion Financial Management accessible data. CVSS 3.1 Base Score 7.5 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/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 local system privileges on the target machine. An attacker with basic network connectivity can initiate an exploit against this vulnerability without needing valid credentials or user interaction, making it a high-risk issue in environments where Hyperion Financial Management is exposed to internal or external networks.
The technical nature of this flaw allows for unauthorized access to critical data stored within the Oracle Hyperion Financial Management system. The impact assessment indicates that successful exploitation can lead to complete access to all accessible data managed by the application, including sensitive financial records, strategic planning models, and operational metrics. This level of compromise aligns with CWE-287, which describes Improper Authentication, where an attacker is able to bypass authentication mechanisms or exploit weaknesses in credential validation processes. The absence of required authentication for certain administrative or data retrieval functions creates a direct path for malicious actors to extract information that should be restricted to authorized personnel only.
From an operational perspective, the consequences of this vulnerability are severe due to the sensitive nature of financial management data. Unauthorized access can lead to significant confidentiality breaches, potentially exposing proprietary financial strategies, budget forecasts, and audit trails to competitors or malicious entities. The CVSS 3.1 base score of 7.5 reflects a High severity rating driven primarily by high Confidentiality impacts while maintaining Low Attack Complexity and no required User Interaction. This scoring suggests that the vulnerability is easily exploitable with minimal effort from an attacker who has network access, thereby increasing the likelihood of successful exploitation in real-world scenarios where such systems are often internet-facing or accessible across wide area networks.
The attack pattern associated with this vulnerability can be mapped to MITRE ATT&CK techniques related to Initial Access and Credential Access. Specifically, it relates to T1078 Valid Accounts if the attacker leverages default or weak credentials obtained through other means, but more critically, it aligns with T1190 Exploit Public-Facing Application when considering the exploitation of web-based services without prior authentication. The ability to access all data implies a potential for further lateral movement within the organization's network once initial foothold is established via this entry point. This underscores the importance of treating such vulnerabilities not just as isolated application flaws but as gateways for broader enterprise compromise.
Mitigation strategies must prioritize immediate patching and configuration hardening. Oracle should be consulted to apply the latest security patches that address the authentication bypass in version 11.2.26.0.000 or later affected versions. In addition to software updates, organizations should implement strict network segmentation policies to ensure that Hyperion Financial Management instances are not directly accessible from untrusted networks such as the public internet. Web Application Firewalls can be configured to detect and block anomalous HTTP requests that attempt to exploit this specific vulnerability pattern. Furthermore, enforcing multi-factor authentication for all administrative interfaces and reviewing access control lists will help mitigate risks associated with unauthorized data retrieval even if similar vulnerabilities are discovered in the future. Regular security audits and penetration testing focused on web application security controls are essential to maintain a robust defense posture against such exploitation attempts.