CVE-2026-87206 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 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 7.4 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/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's data stores. The vulnerability is characterized by its network-based attack vector, allowing exploitation over HTTP without requiring any form of user interaction or prior authentication credentials. While the complexity of exploiting this specific weakness is rated as difficult, which may limit the volume of automated attacks in the wild, the severity of the potential impact remains high due to the privileged nature of the actions an attacker can perform once a successful exploit chain is executed.
From a technical perspective, the core issue involves insufficient access control mechanisms or improper validation within the HTTP request handling logic of the Hyperion Financial Management server. This allows remote actors to manipulate critical system functions that should be restricted to authorized administrators. The vulnerability aligns with CWE-269, which denotes Improper Privilege Assignment, as it enables an actor without valid credentials to assume roles or execute commands typically reserved for privileged users. Furthermore, the ability to alter data structures and content maps directly to CWE-352, Cross-Site Request Forgery (CSRF), if the vulnerability relies on state-changing HTTP requests that are not properly validated against session tokens or origin headers, although it may also involve direct API endpoint exploitation depending on the specific implementation flaw. The lack of authentication requirement places this squarely within the context of unauthenticated remote code execution patterns often seen in enterprise web applications where input sanitization and authorization checks are inadequately implemented at the entry points.
The operational impact of a successful exploit is severe, encompassing both confidentiality and integrity breaches while leaving availability largely intact according to the CVSS scoring. An attacker can achieve unauthorized creation, deletion, or modification of critical financial data, which undermines the fundamental reliability of the enterprise resource planning system. This capability allows for the fabrication of fraudulent transactions, alteration of audit trails, or destruction of essential records, leading to significant regulatory and financial consequences for the organization. Additionally, the vulnerability grants complete access to all accessible data within the Hyperion environment, facilitating extensive information disclosure. Sensitive financial reports, budget forecasts, and proprietary business intelligence could be exfiltrated, providing competitors with strategic advantages or enabling further social engineering attacks against internal staff using leaked organizational details.
In terms of threat modeling and industry frameworks, this vulnerability facilitates actions consistent with MITRE ATT&CK techniques related to Data Manipulation and Collection via web application interfaces. The unauthenticated nature of the attack means it does not require initial foothold through phishing or credential theft, lowering the barrier for entry significantly despite the high complexity rating. Attackers can leverage automated tools to probe for this weakness across large IP ranges, although the difficulty factor suggests that successful exploitation likely requires specific knowledge of the application's internal state or unique configuration quirks. The combination of network accessibility and lack of authentication makes it a persistent risk for organizations with exposed Hyperion instances on their public-facing networks or poorly segmented DMZs.
Mitigation strategies must prioritize immediate remediation through vendor-provided patches if available, as this is an Oracle-specific flaw requiring code-level fixes to address the underlying logic errors in the security component. Organizations should implement strict network segmentation to ensure that Hyperion Financial Management instances are not directly accessible from untrusted networks via HTTP or HTTPS without robust intermediary controls. Deploying a Web Application Firewall (WAF) with rulesets tuned for detecting anomalous request patterns associated with privilege escalation and data manipulation can provide an additional layer of defense by blocking malicious payloads before they reach the application server. Furthermore, enforcing strict access control policies and ensuring that all administrative interfaces require multi-factor authentication adds resilience against exploitation attempts. Regular security assessments and penetration testing focused on web application vulnerabilities are essential to identify similar misconfigurations or unpatched weaknesses across the broader Oracle Hyperion ecosystem.