CVE-2026-87143 in Hyperion Data Relationship Management
Summary
by MITRE • 09/16/2026
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. Difficult to exploit vulnerability allows unauthenticated attacker with network access via TCP to compromise Oracle Hyperion Data Relationship Management. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Oracle Hyperion Data Relationship Management accessible data as well as unauthorized access to critical data or complete access to all Oracle Hyperion Data Relationship Management accessible data. CVSS 3.1 Base Score 7.4 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N).
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Analysis
by VulDB Data Team • 09/16/2026
The Oracle Hyperion Data Relationship Management product, specifically version 11.2.26.0.000 within the Access and security component, is affected by a critical vulnerability that allows for unauthorized access to sensitive organizational data. This flaw resides in the authentication or authorization mechanisms governing how users interact with the application over network connections. The severity of this issue is underscored by its potential impact on both confidentiality and integrity, as indicated by a CVSS 3.1 Base Score of 7.4. While the vulnerability requires high complexity to exploit, it does not require user interaction or prior authentication, making it particularly dangerous in environments where network segmentation may be insufficient or misconfigured. The ability for an unauthenticated attacker with TCP network access to compromise the system highlights a fundamental gap in how the application validates incoming requests before granting access to its underlying data structures.
From a technical perspective, this vulnerability likely stems from improper validation of input parameters or flawed logic within the security module that handles session management and permission checks. An attacker can leverage this weakness by crafting specific network packets designed to bypass standard authentication protocols. Because the attack vector is network-based via TCP, it does not require physical access to the server or social engineering tactics such as phishing emails. The high complexity rating suggests that while exploitation is possible for skilled attackers with knowledge of the application's internal workings and network environment, it may involve timing attacks, specific sequence manipulation, or exploiting edge cases in the protocol implementation rather than a simple buffer overflow or injection flaw. This distinction places the vulnerability in a category where automated scanning tools might miss it unless they are specifically tuned to detect authentication bypass patterns.
The operational impact of successfully exploiting this vulnerability is severe for any organization relying on Oracle Hyperion Data Relationship Management for financial planning, budgeting, and reporting. Successful exploitation grants an attacker unauthorized creation, deletion, or modification access to critical data within the application. This means that financial records, strategic plans, and sensitive business metrics could be altered without detection, leading to significant integrity issues in decision-making processes. Furthermore, the vulnerability allows for complete unauthorized access to all accessible data, resulting in a total breach of confidentiality. Sensitive information such as employee salaries, vendor contracts, or proprietary financial models could be exfiltrated, potentially violating regulatory compliance requirements like GDPR, SOX, or HIPAA depending on the nature of the stored data and the jurisdictional obligations of the organization.
In terms of industry standard classifications, this vulnerability aligns with CWE-287 Improper Authentication, as it allows an actor to bypass authentication mechanisms. It also relates closely to CWE-862 Missing Authorization, since even if some level of identification occurs, the system fails to properly enforce access controls for unauthenticated users. From a tactical standpoint within the MITRE ATT&CK framework, this vulnerability facilitates Initial Access through network-based exploitation and could lead to Data Exfiltration or Impact via data manipulation. The lack of required user interaction simplifies the attack chain, allowing adversaries to move from reconnaissance to compromise more rapidly than in vulnerabilities requiring UI interactions.
Mitigation strategies must focus on both immediate remediation and long-term architectural improvements. Oracle has likely released a patch for version 11.2.26.0.000 that addresses these flaws within the Access and security component; applying this update is the primary defense mechanism. Organizations should prioritize deploying this patch in their production environments immediately to close the authentication bypass gap. In addition to patching, implementing network-level controls such as strict firewall rules can limit exposure by restricting TCP access to the Hyperion server only from trusted IP addresses or specific subnets known for administrative use. Deploying a Web Application Firewall with signatures tuned for Oracle Hyperion vulnerabilities can also provide an additional layer of defense by inspecting and blocking malicious payloads before they reach the application logic. Regular security assessments, including penetration testing focused on authentication bypass techniques, should be conducted to ensure that no other similar weaknesses exist in related components or configurations.