CVE-2026-70683 in Hyperion Calculation Manager
Summary
by MITRE • 08/19/2026
Vulnerability in the Oracle Hyperion Calculation Manager 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 Calculation Manager. 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 Calculation Manager accessible data. CVSS 3.1 Base Score 4.3 (Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/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 Calculation Manager, specifically affecting version 11.2.25.0.000 and potentially other supported releases in that lineage. This flaw represents a significant security deficiency because it permits an unauthenticated attacker to exploit the system over a network via HTTP without requiring prior credentials or authentication tokens. The presence of this vulnerability indicates a failure in the application's access control mechanisms, allowing external actors to interact with sensitive backend functions that should be restricted to authorized personnel only.
The technical nature of this flaw is characterized by its reliance on human interaction for successful exploitation. While the attack vector allows network-based initiation from any location without authentication, the actual compromise requires a victim user to perform an action, such as clicking a malicious link or interacting with a crafted interface element. This social engineering dependency classifies the vulnerability under CWE-79, which covers Improper Neutralization of Input During Web Page Generation known commonly as Cross-Site Scripting or similar input validation failures that lead to unauthorized actions when triggered by user behavior. The requirement for human interaction suggests the exploit may involve manipulating session states or triggering unintended API calls through deceptive means rather than direct automated exploitation of a buffer overflow or logic error alone.
From an operational perspective, the impact of this vulnerability is centered on data integrity and confidentiality within the Oracle Hyperion ecosystem. Successful exploitation results in unauthorized update, insert, or delete access to accessible data managed by Calculation Manager. This capability allows attackers to alter financial models, modify calculation rules, or remove critical configuration data, thereby compromising the accuracy and reliability of business intelligence outputs. The CVSS 3.1 base score of 4.3 reflects a medium severity level driven primarily by integrity impacts rather than availability or confidentiality breaches in this specific context. However, given that Oracle Hyperion is often used for mission-critical financial planning and analysis, even moderate integrity violations can lead to severe downstream consequences including regulatory non-compliance and incorrect strategic decision-making based on corrupted data sets.
The attack vector aligns with ATT&CK technique T1059, Command and Scripting Interpreter, if the vulnerability allows execution of arbitrary commands through manipulated inputs, or more likely T1132 Data Encoding, if obfuscation is used to bypass detection mechanisms during the social engineering phase. It also maps closely to MITRE CWE-862 Missing Authorization, as the system fails to verify that the user initiating the action has the necessary privileges for the requested operation on specific data objects. The network access vector AV:N combined with low complexity AC:L indicates that the vulnerability is easily discoverable and exploitable by attackers with basic skills once they can lure a victim into interaction.
Mitigation strategies must focus on both immediate remediation and long-term architectural improvements. Oracle should be consulted for available patches or updates that address this specific security flaw in version 11.2.25.0.000. In the interim, organizations should implement strict network segmentation to limit HTTP access to Calculation Manager interfaces from untrusted networks. Additionally, deploying web application firewalls can help detect and block malicious payloads designed to trigger the vulnerability through crafted requests or deceptive user interactions. Security awareness training for users is also critical to reduce the success rate of social engineering attacks that rely on human interaction to complete the exploit chain. Regular audits of access controls and input validation logic within custom integrations using Hyperion APIs can further harden the environment against similar unauthorized modification attempts.