CVE-2026-87194 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 allows an unauthenticated attacker to compromise the integrity and confidentiality of the application environment. The attack vector is network-based via HTTP, meaning no physical access or prior authentication credentials are required to initiate exploitation. This characteristic significantly elevates the risk profile as it exposes the system to remote adversaries across internal networks or the public internet if not properly segmented by firewalls or other perimeter defenses.
The technical nature of this vulnerability centers on a failure in proper authorization checks within the HTTP handling mechanisms of the application server. When an unauthenticated user sends specific, crafted requests over HTTP, the software fails to verify whether the requester has legitimate permissions before processing sensitive operations. This logic error effectively bypasses authentication controls, granting the attacker access to functionalities that should be restricted to authorized personnel only. The absence of adequate input validation or session management checks allows malicious actors to traverse protected endpoints and retrieve data that is intended to remain confidential within the financial management system.
The operational impact of this vulnerability is severe due to its direct effect on confidentiality. As indicated by the CVSS 3.1 base score of 7.5, which classifies it as High severity, successful exploitation leads to unauthorized access to critical business data. Oracle Hyperion Financial Management typically houses sensitive financial records, including general ledgers, budgeting models, and reporting structures that are vital for corporate decision-making and regulatory compliance. An attacker gaining complete access to all accessible data could exfiltrate proprietary financial information, manipulate fiscal reports, or use the compromised system as a pivot point for further attacks against connected enterprise systems. The lack of impact on integrity or availability in this specific vector suggests the primary threat is data theft rather than service disruption, although secondary impacts such as reputational damage and regulatory fines are inevitable consequences of such a breach.
From an industry standard perspective, this vulnerability aligns with CWE-287, which describes Improper Authentication, where the system fails to correctly verify identity before granting access. It also relates closely to CWE-306, Missing Authentication for Critical Function, as specific security-critical operations are accessible without proper credential verification. In terms of adversary tactics, this flaw facilitates initial access and potentially privilege escalation within the application layer, mapping to MITRE ATT&CK techniques such as T1078 Valid Accounts if credentials were later harvested or T1539 Steal Web Session Cookie if session hijacking is involved in subsequent phases. The network-based nature of the exploit places it firmly within remote attack vectors that are frequently targeted by automated scanning tools and opportunistic attackers seeking low-effort, high-reward compromises.
Mitigation strategies must prioritize immediate patching to address the underlying code flaws responsible for this authentication bypass. Oracle should be consulted for the latest security patches or updates specifically targeting version 11.2.26.0.000 that resolve these authorization logic errors. In addition to software remediation, organizations should implement strict network segmentation policies to ensure that Hyperion Financial Management instances are not directly exposed to untrusted networks via HTTP. If external access is required, it must be routed through a secure reverse proxy or web application firewall configured with robust authentication and input validation rules. Enforcing HTTPS exclusively eliminates the risk associated with cleartext transmission and ensures that all communications are encrypted and authenticated at the transport layer. Regular security assessments and penetration testing should also be conducted to identify similar authorization flaws in other components of the Hyperion suite, ensuring a comprehensive defense-in-depth posture against unauthorized data access.