CVE-2026-62459 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. Difficult to exploit vulnerability allows high privileged attacker with network access via HTTP to compromise Oracle Hyperion Calculation Manager. 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 and unauthorized ability to cause a partial denial of service (partial DOS) of Oracle Hyperion Calculation Manager. CVSS 3.1 Base Score 7.2 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:L/A:L).
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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 information stored or processed by the application. The nature of this vulnerability is characterized as difficult to exploit, which implies that an attacker must possess high-level privileges within the system prior to initiating the attack vector. Despite the complexity required to trigger the condition, the potential consequences are severe, impacting not only the confidentiality and integrity of data but also the availability of the service itself. The presence of this flaw underscores significant risks in environments where Oracle Hyperion is deployed for financial planning, budgeting, and consolidation processes, as these systems often handle highly sensitive corporate financial data that requires strict access controls and robust security postures to prevent leakage or manipulation.
From a technical perspective, the vulnerability leverages network-accessible HTTP interfaces, allowing an attacker with high privileged credentials to compromise the integrity of the application's security mechanisms. The requirement for high privilege suggests that this is likely an authorization bypass or improper access control issue rather than a remote code execution flaw exploitable by unauthenticated users. However, once the initial foothold is gained through valid but elevated credentials, the vulnerability enables unauthorized reading of critical data, leading to significant confidentiality breaches. Furthermore, it permits unauthorized updates, inserts, and deletes against accessible data sets, which directly compromises data integrity. This capability allows an attacker to alter financial records, manipulate calculations, or remove essential configuration data, potentially causing long-term operational disruptions or misleading decision-making processes based on corrupted information.
The impact of this vulnerability extends beyond the immediate scope of Oracle Hyperion Calculation Manager due to potential scope changes in attack scenarios. In integrated enterprise environments, compromising one component can often lead to lateral movement or exploitation of trust relationships with other connected systems. This means that while the technical flaw is localized within the Security module of Calculation Manager, the operational impact may ripple through adjacent applications such as Oracle EPM Cloud, Essbase, or other data sources linked via common authentication providers or database connections. The ability to cause a partial denial of service further exacerbates this risk by disrupting business continuity. By exhausting system resources or corrupting state information, an attacker can render critical financial reporting tools unavailable during key periods such as month-end close or quarterly earnings preparation, leading to tangible operational and reputational damage for the organization.
In terms of industry-standard classification frameworks, this vulnerability aligns with CWE-269 Improper Privilege Management and CWE-862 Missing Authorization, reflecting the core issue of allowing actions without sufficient verification of user rights relative to the specific resource being accessed. The ability to modify data corresponds closely to CWE-732 Incorrect Permission Assignment for Critical Resource, while the denial of service aspect relates to CWE-400 Uncontrolled Resource Consumption or CWE-915 Improper Control of Dynamically-Managed Code Resources depending on the exact mechanism used to degrade availability. From an adversary tactics perspective, this aligns with MITRE ATT&CK techniques such as T1078 Valid Accounts for initial access and privilege escalation, followed by T1046 Network Service Discovery if lateral movement is attempted, and potentially T1539 Steal Web Session Cookie or T1530 Data from Cloud Storage depending on how the data exfiltration occurs. The high attack complexity indicates that automated exploitation tools are less likely to be effective against this specific flaw without prior reconnaissance and credential theft.
Mitigation strategies must focus on both immediate remediation and long-term architectural hardening. Oracle should apply the latest security patches or updates provided for version 11.2.25.0.000 as soon as they are available, ensuring that all instances of Calculation Manager within the enterprise environment are updated consistently to prevent version skew vulnerabilities. In addition to patching, organizations must enforce strict least-privilege principles by auditing user accounts with high-level administrative access. It is critical to review which users possess elevated privileges and ensure that these rights are granted only to individuals who absolutely require them for their job functions. Implementing multi-factor authentication for all administrative interfaces can significantly raise the barrier for attackers, even if they manage to obtain valid credentials through phishing or credential stuffing attacks.
Furthermore, network segmentation plays a vital role in limiting the blast radius of such vulnerabilities. Oracle Hyperion components should be placed in isolated network zones with strict firewall rules that restrict HTTP and HTTPS traffic only from authorized application servers and management stations. Regular vulnerability scanning and penetration testing focused on web applications can help identify similar misconfigurations or logic flaws before they are exploited by malicious actors. Logging and monitoring solutions should also be configured to detect anomalous behavior, such as unusual data modification patterns or spikes in resource consumption that might indicate an ongoing exploitation attempt. By combining timely patching with robust identity governance and network security controls, organizations can effectively mitigate the risks associated with this high-impact vulnerability in Oracle Hyperion Calculation Manager.