CVE-2026-70789 in Hyperion Financial Reporting
Summary
by MITRE • 08/19/2026
Vulnerability in the Oracle Hyperion Financial Reporting product of Oracle Hyperion (component: Server). The supported version that is affected is 11.2.25.0.000. Difficult to exploit vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Hyperion Financial Reporting. Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle Hyperion Financial Reporting accessible data as well as unauthorized update, insert or delete access to some of Oracle Hyperion Financial Reporting accessible data. CVSS 3.1 Base Score 5.9 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:L/A:N).
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Analysis
by VulDB Data Team • 08/19/2026
The identified vulnerability resides within the server component of Oracle Hyperion Financial Reporting, specifically affecting version 11.2.25.0.000 and potentially other supported releases in that lineage. This security flaw is classified as a difficult-to-exploit issue that permits an unauthenticated attacker to compromise the system by leveraging network access via the HTTP protocol. The nature of this vulnerability suggests it likely involves a logic error or improper validation mechanism within the web application layer, allowing malicious actors to manipulate server-side processes without requiring valid credentials. Such flaws are often associated with insecure direct object references or broken access control mechanisms where the application fails to properly verify user permissions before executing sensitive operations on behalf of an unauthenticated request.
The operational impact of this vulnerability is significant due to its potential for unauthorized data manipulation and disclosure. A successful exploitation can lead to a complete compromise of confidentiality, granting attackers unrestricted read access to all critical financial data accessible through Oracle Hyperion Financial Reporting. This includes sensitive corporate financial statements, budgets, forecasts, and other proprietary information that forms the backbone of organizational decision-making processes. Furthermore, the integrity impact is substantial as the vulnerability allows for unauthorized updates, inserts, or deletes against accessible data. This capability enables attackers to alter financial records, inject fraudulent transactions, or delete critical historical data, thereby undermining the reliability and trustworthiness of the entire reporting infrastructure. The combination of high confidentiality loss and low-to-medium integrity loss results in a CVSS 3.1 base score of 5.9, indicating a medium severity rating that warrants immediate attention due to the potential for significant business disruption and regulatory non-compliance.
Exploitation of this vulnerability requires two distinct conditions: network accessibility via HTTP and human interaction from a user other than the attacker. The requirement for human interaction implies that the attack vector likely involves social engineering tactics, such as phishing or malicious link delivery, where an unsuspecting employee must perform an action like clicking a crafted URL or uploading a specific file to trigger the exploit. This characteristic aligns with CWE-79, which covers Cross-Site Scripting (XSS) vulnerabilities, or potentially CWE-601 regarding Open Redirect flaws that can be chained into other attacks. From an ATT&CK perspective, this behavior maps to techniques involving Initial Access through Spearphishing Link and subsequent Execution if the vulnerability allows for code execution, though in this case, it primarily facilitates Data Exfiltration (T1530) and Data Manipulation via Application Layer Protocol abuse. The difficulty of exploitation serves as a partial mitigating factor but does not eliminate the risk given the high value of the targeted data assets.
To mitigate these risks, organizations must implement immediate compensatory controls while awaiting official patches from Oracle. Network segmentation should be enforced to restrict HTTP access to the Hyperion Financial Reporting server strictly to authorized IP ranges and management networks. Web Application Firewalls (WAF) can be configured with specific rulesets to detect and block anomalous HTTP requests that exhibit patterns consistent with this vulnerability, such as unusual parameter manipulation or unexpected data payloads. Additionally, rigorous user awareness training is essential to reduce the likelihood of successful human interaction exploitation by educating staff on identifying suspicious links and verifying the authenticity of external communications. It is also critical to ensure that all systems are updated to the latest security patches provided by Oracle once they become available for version 11.2.25.0.000, as these updates typically address the underlying code flaws responsible for the insecure handling of unauthenticated requests and improper access control checks.