CVE-2026-87217 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. An attacker with basic network connectivity can initiate an exploit against this service without needing valid credentials, highlighting a severe lapse in authentication enforcement at the entry point of the affected component.
From a technical perspective, the vulnerability allows for unauthorized creation, deletion, or modification of critical data within the Oracle Hyperion Financial Management system. This capability extends to all accessible data managed by the application, effectively granting an attacker full administrative control over the financial records and configurations stored therein. The absence of proper access controls means that sensitive financial information can be exfiltrated, altered maliciously, or destroyed entirely. Such actions undermine the fundamental principles of data integrity and confidentiality, which are paramount in financial management systems where accuracy and security are legally and operationally mandated.
The operational impact of this vulnerability is severe due to its high CVSS 3.1 Base Score of 9.1. The vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N) indicates that while availability remains unaffected, both confidentiality and integrity impacts are rated as High. This means an attacker can read all sensitive data and modify any part of the system without detection or restriction in many scenarios. For financial institutions relying on Oracle Hyperion for reporting, budgeting, and consolidation, such a breach could lead to significant financial loss, regulatory penalties under frameworks like SOX or GDPR, and irreversible reputational damage due to compromised trust in their financial data integrity.
In terms of industry standard classifications, this vulnerability aligns with CWE-287 Improper Authentication, as the system fails to adequately verify identity before granting access. It also relates closely to CWE-862 Missing Authorization, since unauthenticated users are able to perform actions reserved for privileged accounts. Furthermore, from a threat modeling perspective using MITRE ATT&CK, this behavior corresponds to techniques such as T1078 Valid Accounts if the attacker leverages stolen credentials later, or more directly T1190 Exploit Public-Facing Application when leveraging the HTTP interface. The ability to modify data maps to T1565 Data Manipulation, while unauthorized access aligns with T1071 Application Layer Protocol for lateral movement and exfiltration if combined with other exploits.
Mitigation strategies must prioritize immediate remediation through vendor-provided patches or updates that address the specific security flaw in the Hyperion Security component. Organizations should ensure their Oracle Hyperion Financial Management instances are updated to a version where this vulnerability is resolved, as indicated by official Oracle Critical Patch Update advisories. In addition to patching, network-level controls such as Web Application Firewalls (WAF) can be configured to detect and block anomalous HTTP requests associated with exploitation attempts. Restricting direct internet access to the Hyperion application servers and placing them behind a secure internal network segment further reduces the attack surface by limiting exposure to unauthenticated external actors.
Long-term security posture improvements should include implementing strict input validation on all user-facing endpoints, enforcing multi-factor authentication for administrative interfaces, and conducting regular vulnerability assessments focused on financial management applications. Monitoring logs for unusual patterns of data creation or modification can aid in early detection of exploitation attempts. By combining immediate patching with robust architectural controls and continuous monitoring, organizations can effectively neutralize the risk posed by this high-severity vulnerability and maintain the integrity of their critical financial infrastructure.