CVE-2026-71123 in Hyperion Financial Management
Summary
by MITRE • 08/19/2026
Vulnerability in the Oracle Hyperion Financial Management product of Oracle Hyperion (component: Security). The supported version that is affected is 11.2.25.0.000. 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 update, insert or delete access to some of Oracle Hyperion Financial Management accessible data as well as unauthorized read access to a subset of Oracle Hyperion Financial Management accessible data. CVSS 3.1 Base Score 5.4 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N).
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Analysis
by VulDB Data Team • 08/19/2026
The identified vulnerability resides within the Security component of Oracle Hyperion Financial Management, specifically affecting version 11.2.25.0.000 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's data through network access via HTTP. The vulnerability is characterized by its ease of exploitation, which significantly lowers the barrier for entry for malicious actors who possess basic technical skills or utilize automated exploit tools available in public repositories. Despite the low complexity required to initiate the attack vector, the successful execution of this vulnerability necessitates human interaction from a user other than the attacker. This social engineering aspect implies that the initial trigger likely involves deceiving an authorized user into performing an action, such as clicking on a malicious link or opening a crafted document within the Hyperion environment, which then triggers the underlying code flaw.
From a technical perspective, this vulnerability aligns with CWE-79, known as Improper Neutralization of Input During Web Page Generation, commonly referred to as Cross-Site Scripting (XSS), or potentially CWE-20 for improper input validation if it involves command injection mechanisms facilitated by the UI interaction requirement. The presence of a user interface dependency suggests that the application fails to adequately sanitize inputs before processing them in a context where they can be executed or interpreted maliciously, leading to unauthorized data manipulation. The attack vector is classified as Network (AV:N) with Low Complexity (AC:L), indicating that no specialized conditions are required beyond network connectivity and HTTP access. However, the requirement for User Interaction (UI:R) places it in a category where social engineering plays a pivotal role in achieving initial compromise. This dynamic shifts the risk profile from purely technical exploitation to one requiring psychological manipulation of end-users who have legitimate access to the system.
The operational impact of this vulnerability is substantial due to its effects on both data confidentiality and integrity, as reflected by the CVSS 3.1 Base Score of 5.4. Successful exploitation grants an attacker unauthorized read access to a subset of accessible data within Oracle Hyperion Financial Management. In the context of financial management software, this could expose sensitive financial records, budgetary forecasts, or proprietary business intelligence that is not intended for public consumption. Furthermore, the vulnerability allows for unauthorized updates, inserts, or deletes against some of the accessible data. This integrity violation poses a severe risk to organizations relying on Hyperion for accurate financial reporting and decision-making. An attacker could alter transactional records, delete critical audit trails, or inject fraudulent entries that mimic legitimate business activities, thereby corrupting the reliability of financial statements and potentially leading to significant regulatory non-compliance and reputational damage.
In terms of threat modeling, this vulnerability maps to ATT&CK technique T1059, Command and Scripting Interpreter, if script execution is involved, or more broadly to T1204, User Execution, given the necessity for human interaction. The lack of authentication requirements (PR:N) means that any external actor with network access can attempt this attack without needing valid credentials initially, although they must trick an authenticated user into facilitating the exploit. This combination makes it particularly dangerous in enterprise environments where perimeter defenses may block direct database access but fail to inspect HTTP traffic for malicious payloads disguised as legitimate UI interactions. The impact on availability is listed as None (A:N), meaning the primary goal of such attacks would likely be data theft or manipulation rather than service disruption, although persistent integrity violations can indirectly cause operational downtime during forensic investigations and remediation efforts.
Mitigation strategies must address both the technical flaw and the human element involved in its exploitation. Oracle has released patches for version 11.2.25.0.000 to resolve this security issue; therefore, immediate application of these vendor-supplied updates is the primary recommendation. Organizations should prioritize patching systems that are exposed to untrusted networks or have a high volume of external HTTP traffic. In addition to software remediation, implementing strict input validation and output encoding at the application layer can help prevent similar vulnerabilities if new flaws emerge before patches are available. Security awareness training for employees is crucial given the user interaction requirement; users should be educated on recognizing suspicious links or requests that ask them to perform actions within financial applications from unverified sources. Network segmentation and web application firewalls (WAFs) configured with rulesets targeting common injection patterns can also provide an additional layer of defense by blocking malicious HTTP payloads before they reach the vulnerable component. Regular vulnerability scanning and penetration testing focused on authentication bypasses and input validation flaws will help identify similar weaknesses across the Hyperion deployment infrastructure, ensuring a robust security posture against evolving threat vectors.