CVE-2026-87244 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 high 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 7.2 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/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 security flaw that undermines the integrity and confidentiality of financial data processing systems. This specific iteration of the software is susceptible to an easily exploitable attack vector that requires high-privileged access but allows for remote exploitation over HTTP without user interaction. The presence of this weakness indicates a significant lapse in input validation or authentication mechanisms within the application's security layer, allowing attackers who have already obtained elevated credentials to execute unauthorized actions with profound consequences.
From a technical perspective, the flaw enables an attacker with network access via HTTP to compromise the underlying system by leveraging their high-privileged status to bypass expected security controls. Although the requirement for high privileges might suggest that initial access is difficult, once such access is gained through social engineering, credential theft, or insider threats, the vulnerability allows for immediate and complete takeover of the Oracle Hyperion Financial Management environment. This characteristic aligns with CWE Category 287, which covers Improper Authentication, as well as potential aspects of CWE 20 regarding improper input validation if the HTTP requests are manipulated to trigger unintended code paths. The ease of exploitation suggests that standard security boundaries within the application logic fail to enforce strict separation between administrative functions and user-level operations when accessed through specific HTTP endpoints.
The operational impact of this vulnerability is severe, as indicated by a CVSS 3.1 Base Score of 7.2, which classifies it as High severity. The vector string (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H) reveals that while the attack requires high privileges and has low complexity, its success results in high impacts across confidentiality, integrity, and availability. An attacker can fully compromise the system, leading to unauthorized disclosure of sensitive financial data, modification or deletion of critical financial records, and disruption of service for users relying on the platform. This level of impact poses a direct threat to organizational compliance with financial regulations such as SOX, GDPR, or industry-specific standards that mandate strict access controls and data integrity protections.
In terms of adversary behavior, this vulnerability maps closely to MITRE ATT&CK techniques related to Privilege Escalation and Defense Evasion. An attacker leveraging this flaw would likely engage in lateral movement within the network after gaining initial foothold through compromised high-privileged accounts. The ability to take over the application completely allows for persistent access and potential exfiltration of large volumes of sensitive financial information, which is a primary objective in targeted attacks against enterprise resource planning systems. Security teams should monitor for anomalous HTTP traffic patterns originating from internal networks that involve administrative endpoints within Hyperion Financial Management, as these may indicate exploitation attempts or post-exploitation activities.
Mitigation strategies must focus on both immediate remediation and long-term architectural improvements. Oracle has likely released a patch for version 11.2.26.0.000 to address this specific security flaw; therefore, applying the latest available updates is the primary corrective action. Organizations should also enforce strict network segmentation to limit HTTP access to Hyperion servers only from authorized management stations or VPNs rather than exposing them broadly across the corporate network. Implementing multi-factor authentication for all administrative accounts can reduce the risk of credential compromise leading to this vulnerability's exploitation. Additionally, deploying web application firewalls with rulesets tuned to detect common injection patterns and unauthorized privilege escalation attempts can provide an additional layer of defense against automated attacks targeting known vulnerabilities in enterprise applications.