CVE-2026-87133
Summary
by MITRE • 09/15/2026
Vulnerability in the Oracle Hyperion Data Relationship Management product of Oracle Hyperion (component: Access and security). The supported version that is affected is 11.2.26.0.000. Easily exploitable vulnerability allows high privileged attacker with network access via HTTP to compromise Oracle Hyperion Data Relationship Management. While the vulnerability is in Oracle Hyperion Data Relationship Management, 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 Data Relationship Management accessible data as well as unauthorized update, insert or delete access to some of Oracle Hyperion Data Relationship Management accessible data. CVSS 3.1 Base Score 7.6 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:L/A:N).
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Analysis
by VulDB Data Team • 09/15/2026
The identified vulnerability resides within the Access and security component of Oracle Hyperion Data Relationship Management, specifically affecting version 11.2.26.0.000. This flaw represents a critical weakness in how the application handles authentication and authorization mechanisms over HTTP connections. The core technical issue involves an insufficient validation or enforcement of access controls that allows a high-privileged attacker to bypass intended security restrictions. Although the vulnerability is localized within this specific product, it poses a significant risk due to its potential for scope change, meaning successful exploitation can lead to compromises in additional products connected to or dependent on Oracle Hyperion Data Relationship Management. This interconnectedness amplifies the blast radius of an attack beyond the immediate application boundary, potentially exposing broader enterprise data ecosystems to unauthorized access and manipulation.
From a technical perspective, the vulnerability is characterized by its ease of exploitability despite requiring high-privileged credentials initially. An attacker with network access via HTTP can leverage this flaw to escalate their effective privileges or bypass security boundaries that should otherwise remain intact. The absence of user interaction requirements further facilitates automated exploitation scenarios where an adversary does not need to trick a human operator into performing specific actions. This aligns closely with CWE classifications for improper privilege management and broken access control, indicating that the system fails to correctly enforce separation between different levels of authority or data sensitivity. The reliance on HTTP rather than more secure protocols may also suggest potential issues with transport layer security if not properly configured, although the primary flaw lies in the application logic itself.
The operational impact of this vulnerability is severe, primarily affecting confidentiality and integrity within the affected environment. Successful exploitation enables an attacker to gain unauthorized access to critical data that should be restricted based on role-based permissions. Beyond mere observation, the attacker can perform unauthorized updates, inserts, or deletes against accessible data sets. This capability directly compromises the integrity of business-critical information managed by Oracle Hyperion Data Relationship Management, which often includes financial reporting structures and complex relational data models essential for enterprise planning and analysis. The CVSS 3.1 base score of 7.6 reflects this high level of risk, driven largely by the high impact on confidentiality and low-to-medium impact on integrity, with no direct effect on availability in this specific vector description.
In terms of threat modeling and industry standards, this vulnerability maps to MITRE ATT&CK techniques related to privilege escalation and data exfiltration. An attacker leveraging this flaw would likely engage in lateral movement across the integrated Oracle Hyperion suite, using the compromised access as a foothold to reach other sensitive systems. The scope change aspect highlights the importance of understanding dependency chains within enterprise software stacks, where a weakness in one module can serve as an entry point for broader system compromise. Security teams must recognize that vulnerabilities in high-privileged components are particularly dangerous because they often provide direct pathways to administrative functions or core data stores without needing complex exploitation chains involving multiple distinct flaws.
Mitigation strategies should prioritize immediate patching of the Oracle Hyperion Data Relationship Management product to version 11.2.26.0.000 or later, ensuring that all security updates provided by Oracle are applied promptly. In addition to software remediation, organizations should review network segmentation policies to restrict HTTP access to this component from untrusted networks. Implementing strict firewall rules and web application firewalls can help mitigate the risk of exploitation by filtering malicious requests before they reach the vulnerable application logic. Furthermore, auditing existing user accounts for excessive privileges is crucial; ensuring that only necessary personnel have high-privileged access reduces the attack surface available to potential adversaries who might compromise lower-level credentials first. Regular security assessments and penetration testing focused on authentication mechanisms can help identify similar weaknesses in other integrated systems before they are exploited in production environments.