CVE-2026-70678 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 low privileged attacker with network access via HTTP to compromise Oracle Hyperion Calculation Manager. Successful attacks require human interaction from a person other than the attacker and while the vulnerability is in Oracle Hyperion Calculation Manager, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle Hyperion Calculation Manager accessible data as well as unauthorized update, insert or delete access to some of Oracle Hyperion Calculation Manager accessible data. CVSS 3.1 Base Score 7.6 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/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 the suite. This flaw represents a critical security deficiency that allows for unauthorized access to sensitive data stored or processed by the application. The nature of this vulnerability is characterized as easily exploitable, indicating that the technical complexity required to leverage it is low. An attacker with network access via HTTP can initiate an attack against the target system without needing high-level privileges initially, although the exploitation process does require a specific condition: human interaction from a user other than the attacker. This requirement suggests that the vulnerability likely involves social engineering vectors or requires a victim to perform an action such as clicking a malicious link or opening a crafted file within the application interface.
From a technical perspective, this flaw aligns with CWE-79, which covers Cross-Site Scripting (XSS) vulnerabilities where untrusted data is not properly validated before being sent to a web browser. The requirement for human interaction strongly points toward an attack vector similar to stored or reflected XSS, where the attacker injects malicious scripts that are executed by the victim's browser when interacting with compromised content within Hyperion Calculation Manager. Alternatively, it could relate to CWE-434, which involves the upload of a dangerous type of file if the vulnerability allows for arbitrary file uploads that lead to code execution or data exposure. The presence of this flaw in the security component indicates a failure in input validation or authentication mechanisms that govern how user interactions are processed and rendered within the application environment.
The operational impact of successfully exploiting this vulnerability is severe, as indicated by a CVSS 3.1 Base Score of 7.6. This score reflects high impacts on confidentiality and low impacts on integrity, with no impact on availability. Successful exploitation allows an attacker to gain unauthorized access to critical data within the Oracle Hyperion ecosystem. Furthermore, it grants complete access to all data accessible through Oracle Hyperion Calculation Manager, effectively bypassing intended security controls. Beyond mere data theft, the vulnerability also permits unauthorized updates, inserts, or deletes of some data accessible by the application. This capability introduces integrity risks that could lead to financial reporting errors, corrupted analytical models, or manipulation of business-critical information managed within the platform.
The scope change noted in the advisory is a critical factor in assessing risk. While the vulnerability exists specifically in Oracle Hyperion Calculation Manager, attacks may significantly impact additional products due to shared infrastructure, database connections, or integrated authentication mechanisms common in enterprise software suites like Oracle Fusion Middleware. This means that compromising this single component could serve as an entry point for lateral movement within the broader IT environment, potentially exposing other critical systems such as Essbase, Planning, or Financial Data Quality Management modules. The ability to modify data further exacerbates the risk, allowing attackers not only to exfiltrate information but also to alter business logic and financial records with lasting consequences.
In terms of threat modeling, this vulnerability maps to ATT&CK technique T1059, Command and Scripting Interpreter, if script execution is involved, or more likely T1189 Drive-by Client Compromise if it involves browser-based exploitation requiring user interaction. It also relates to T1213 Data from Information Repositories for the exfiltration aspect. The low privilege requirement combined with network accessibility makes this a high-risk vector for remote attackers who can target users within an organization's intranet or extranet environments where Hyperion is deployed.
Mitigation strategies must focus on immediate patching and enhanced monitoring. Oracle should be consulted to apply the latest security patches that address the specific flaw in version 11.2.25.0.000. In addition to software updates, organizations should implement strict input validation policies for any custom integrations or plugins used with Hyperion Calculation Manager. Network segmentation is recommended to limit HTTP access to only authorized IP ranges and users. Security awareness training for end-users is crucial given the human interaction requirement; employees must be educated on recognizing suspicious links or content within the application interface. Finally, deploying Web Application Firewalls (WAFs) configured to detect common XSS patterns can provide an additional layer of defense against exploitation attempts while patching efforts are underway.