CVE-2026-87231 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 unauthenticated 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 8.1 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/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 classified as an unauthenticated remote code execution or privilege escalation vector that allows attackers with network access via HTTP to compromise the underlying system. The severity of this issue is underscored by its CVSS 3.1 base score of 8.1, which indicates a High level of risk due to significant impacts on confidentiality, integrity, and availability. The specific vector string (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H) reveals that while the attack requires high complexity in terms of exploitation conditions, it does not require any user interaction or prior authentication privileges, making it a potent threat for automated scanning and exploitation tools operating over standard web ports.
From a technical perspective, this vulnerability likely stems from insufficient validation or sanitization mechanisms within the HTTP request handling logic of the Hyperion Financial Management application server. Although the exploit complexity is rated as high, suggesting that specific conditions or precise sequence attacks are necessary to trigger the flaw, the absence of authentication requirements means any actor on the network can attempt exploitation without needing valid credentials. This characteristic aligns with CWE-287 (Improper Authentication) and potentially CWE-94 (Code Injection), depending on whether the vulnerability allows for arbitrary command execution or unauthorized access control bypasses. The high complexity rating may imply that the attacker must manipulate specific headers, cookies, or payload structures in a non-obvious way to trigger the security boundary failure, but once triggered, it leads directly to system takeover.
The operational impact of successful exploitation is severe and comprehensive. An unauthenticated attacker can achieve full control over Oracle Hyperion Financial Management, which typically translates to complete compromise of the server hosting the application. This includes the ability to read sensitive financial data, modify critical configuration settings, inject malicious scripts into reports or dashboards, and potentially pivot further into other internal network segments if the Hyperion server is integrated with directory services or databases containing valuable intellectual property. The integrity impact suggests that attackers can alter financial records without detection, while availability impacts indicate potential for denial-of-service conditions through resource exhaustion or system instability caused by malicious inputs. Such a breach would violate regulatory compliance requirements such as SOX and GDPR due to the exposure of confidential corporate data.
Mitigation strategies must prioritize immediate patching if Oracle has released a security update addressing this specific flaw in version 11.2.26.0.000 or later. In environments where patching is not immediately feasible, network-level controls should be implemented to restrict access to the Hyperion Financial Management application ports exclusively from trusted IP ranges using firewalls or web application firewalls. Additionally, implementing strict input validation and output encoding at the proxy level can help mitigate injection-based aspects of this vulnerability. Security teams should also monitor for anomalous HTTP traffic patterns that resemble high-complexity exploitation attempts, as these may indicate active probing by threat actors leveraging automated tools. Regular audits of authentication logs and file integrity monitoring on application servers are recommended to detect any signs of unauthorized access or modification resulting from a successful exploit attempt.