CVE-2026-87197 in Hyperion Financial Management
Summary
by MITRE • 09/16/2026
Vulnerability in the Oracle Hyperion Financial Management product of Oracle Hyperion (component: Security). The supported version that is affected is 11.2.26.0.000. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Hyperion Financial Management. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle Hyperion Financial Management accessible data as well as unauthorized update, insert or delete access to some of Oracle Hyperion Financial Management accessible data. CVSS 3.1 Base Score 8.2 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N).
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Analysis
by VulDB Data Team • 09/16/2026
The identified vulnerability resides within the Security component of Oracle Hyperion Financial Management, specifically affecting version 11.2.26.0.000 and potentially other supported releases in that lineage. This flaw represents a critical security deficiency that permits unauthenticated attackers to compromise the integrity and confidentiality of the application environment. The attack vector is network-based via HTTP, which significantly lowers the barrier for exploitation as it does not require physical access or complex social engineering tactics beyond initial network reachability. An attacker with basic networking capabilities can leverage this flaw to gain unauthorized entry into the system without needing valid credentials, highlighting a fundamental failure in authentication mechanisms at the application layer.
From a technical perspective, the vulnerability allows an unauthenticated actor to bypass security controls that should restrict access to sensitive administrative functions or data stores. The absence of proper input validation or session management checks enables the attacker to manipulate requests sent over HTTP to execute unauthorized operations. This lack of rigorous verification processes means that malicious payloads can be injected into standard web traffic, tricking the server into performing actions intended only for authenticated users with appropriate privileges. Such flaws are often rooted in improper implementation of access control logic within the application framework, where state management or token validation is either missing or easily circumvented through crafted HTTP requests.
The operational impact of this vulnerability is severe due to its high CVSS 3.1 Base Score of 8.2, categorized as High severity. The primary consequences involve unauthorized access to critical financial data and the ability to modify that data arbitrarily. Specifically, successful exploitation leads to complete compromise of confidentiality for all accessible Oracle Hyperion Financial Management data, meaning sensitive financial records, budgets, and forecasts could be exfiltrated by external parties. Furthermore, the integrity impact is significant as attackers can perform unauthorized updates, inserts, or deletes on database entries. This capability allows an adversary to alter financial reports, inject fraudulent transactions, or delete essential audit trails, thereby corrupting the reliability of financial reporting systems which are central to organizational decision-making and regulatory compliance.
In terms of industry standard classifications, this vulnerability aligns with CWE-287 Improper Authentication, as it permits unauthenticated access to restricted resources. Additionally, because it allows for unauthorized data modification, it relates closely to CWE-269 Improvement of Privileges or CWE-352 Cross-Site Request Forgery if the exploitation relies on tricking users into making unintended requests, though the description emphasizes direct network-based compromise suggesting a more direct authentication bypass. From an ATT&CK perspective, this falls under Initial Access techniques such as Exploit Public-Facing Application (T1190) and potentially Persistence or Impact tactics depending on how the attacker utilizes the gained access to maintain control or disrupt operations. The specific vector of HTTP indicates reliance on web application vulnerabilities common in enterprise software suites that expose management interfaces over standard ports.
Mitigation strategies must focus immediately on patching the affected version if an official update is available from Oracle, as this appears to be a known flaw requiring vendor-supplied code fixes. In environments where immediate patching is not feasible due to operational constraints, network-level controls should be implemented to restrict access to the Hyperion Financial Management interface exclusively to trusted IP addresses or internal networks using firewalls and web application firewalls that can detect anomalous HTTP patterns associated with exploitation attempts. Additionally, enforcing strict authentication policies and ensuring that all administrative interfaces are protected by multi-factor authentication can reduce the risk surface even if underlying vulnerabilities exist. Regular security assessments and penetration testing of financial management systems are essential to identify such weaknesses before they can be exploited in production environments.