CVE-2026-87247 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 low privileged 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 7.5 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:L/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 authentication bypass or privilege escalation issue that allows low-privileged attackers with network access via HTTP to compromise the application's integrity. The severity of this vulnerability is underscored by its CVSS 3.1 Base Score of 7.5, indicating a High level of risk due to significant impacts on confidentiality, integrity, and availability. The specific vector (CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H) reveals that while the attack requires high complexity and low privileges for the initial attacker position, it does not require user interaction and results in complete compromise of the affected system's security properties.
From a technical perspective, this vulnerability likely stems from insufficient validation or authorization checks within the HTTP request handling mechanisms of the Hyperion Financial Management application server. Attackers can exploit this flaw by crafting specific network packets that bypass standard authentication protocols or manipulate session states to gain unauthorized access. The high complexity factor suggests that successful exploitation may require precise timing, specific environmental conditions, or knowledge of internal system behaviors not publicly documented. However, once exploited, the attacker gains a foothold equivalent to an administrator or highly privileged user within the application environment. This capability aligns with CWE-287 (Improper Authentication) and potentially CWE-269 (Improper Privilege Assignment), as it allows an actor with limited initial access to elevate their privileges significantly without legitimate credentials.
The operational impact of this vulnerability is severe, enabling a complete takeover of the Oracle Hyperion Financial Management instance. An attacker who successfully exploits this flaw can read sensitive financial data, modify critical configuration settings, inject malicious scripts into reports, or disrupt service availability for all users accessing the platform. Since Hyperion often serves as the central repository for an organization's financial planning and analysis activities, a compromise could lead to significant reputational damage, regulatory non-compliance, and potential fraud if financial records are altered undetected. The lack of user interaction requirement means that automated scanning tools or persistent threat actors can target this vulnerability without needing to trick end-users into clicking malicious links or opening infected files, increasing the likelihood of successful exploitation in environments where external-facing HTTP services are exposed.
Mitigation strategies must focus on both immediate remediation and long-term architectural improvements. Oracle should be consulted for the latest security patches that address this specific flaw within version 11.2.26.0.000 or later, as patching is the most effective way to eliminate the root cause of the vulnerability. In the interim, organizations should restrict network access to Hyperion Financial Management servers by implementing strict firewall rules and web application firewalls that filter out suspicious HTTP requests associated with exploitation attempts. Additionally, enforcing multi-factor authentication for all administrative accounts can mitigate the risk even if an attacker bypasses standard password-based controls. It is also advisable to review logging mechanisms to detect anomalous login patterns or privilege escalation events that may indicate active exploitation attempts.
From a threat intelligence perspective, this vulnerability maps to ATT&CK technique T1078 (Valid Accounts) and potentially T1068 (Exploitation for Privilege Escalation), as it involves leveraging valid but low-privileged credentials to gain higher-level access. Security teams should monitor for indicators of compromise such as unusual database queries, unexpected changes in financial data structures, or unauthorized administrative actions logged by the Hyperion system. Regular vulnerability assessments and penetration testing focused on web application security controls are recommended to identify similar weaknesses across other components of the Oracle Hyperion suite. Maintaining an up-to-date inventory of all deployed versions is crucial for ensuring that this specific patch level receives timely attention when updates become available, thereby reducing the window of exposure to potential attackers targeting enterprise financial systems.