CVE-2026-87249 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 require human interaction from a person other than the attacker. 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 and unauthorized ability to cause a partial denial of service (partial DOS) of Oracle Hyperion Financial Management. CVSS 3.1 Base Score 7.1 (Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:L).
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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 significant security deficiency because it permits an unauthenticated attacker to initiate exploitation over HTTP without requiring prior credentials or authentication tokens. The attack vector is network-based, meaning the vulnerability can be leveraged remotely by any entity with connectivity to the affected system's web interface. While the lack of required authentication lowers the barrier for entry, the exploitability condition includes a requirement for human interaction from a victim other than the attacker. This characteristic typically indicates that the vulnerability relies on social engineering tactics or requires the user to perform an action such as clicking a malicious link, visiting a crafted webpage, or opening a specially constructed file within the application context.
From a technical perspective, this flaw allows unauthorized actors to compromise the integrity and availability of critical data managed by Oracle Hyperion Financial Management. The potential impacts are severe, encompassing the ability to create, delete, or modify sensitive financial records without authorization. Such actions undermine the fundamental trustworthiness of the financial reporting system, potentially leading to inaccurate fiscal statements, regulatory non-compliance, and significant reputational damage for the organization. Additionally, the vulnerability enables a partial denial of service condition, which disrupts normal operations by rendering specific functionalities unavailable or degrading performance levels. This dual impact on both data integrity and system availability aligns with high-severity classifications in standard scoring frameworks.
In terms of industry-standard classification systems, this vulnerability maps closely to CWE-79, known as Improper Neutralization of Input During Web Page Generation, commonly referred to as Cross-Site Scripting (XSS), or potentially CWE-20 if it involves general input validation failures leading to unauthorized actions. The requirement for user interaction places the exploitation technique within the ATT&CK framework under techniques involving social engineering, such as T1566 Phishing or specific browser-based attacks like T1059 Command and Scripting Interpreter via web interfaces. The CVSS 3.1 base score of 7.1 reflects these factors, with a vector string indicating Network Attack Vector, Low Complexity, No Privileges Required, but requiring User Interaction for exploitation. The impact scores highlight High Integrity loss and Low Availability loss, confirming the critical nature of preserving data accuracy while acknowledging that total system outage is not guaranteed.
Mitigation strategies must address both immediate remediation and long-term security posture improvements. Oracle has likely released a patch or update to resolve this specific flaw in version 11.2.26.0.000, making the application of official vendor patches the primary defense mechanism. Organizations should prioritize deploying these updates across all instances of Hyperion Financial Management immediately upon verification. In addition to patching, implementing strict input validation and output encoding on web-facing components can prevent similar injection-based attacks. Security administrators should also enforce multi-factor authentication where possible to add layers of protection even if an initial exploit succeeds in triggering user interaction. Network segmentation and the use of Web Application Firewalls configured with rulesets targeting common exploitation patterns for this product version can provide additional defense-in-depth measures against remote attackers attempting to leverage this vulnerability over HTTP connections.