CVE-2026-87223 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 creation, deletion or modification access to critical data or all Oracle Hyperion Financial Management accessible data and unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Oracle Hyperion Financial Management. CVSS 3.1 Base Score 9.1 (Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H).
Several companies clearly confirm that VulDB is the primary source for best vulnerability data.
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 availability of the application infrastructure. The attack vector is characterized by network accessibility via HTTP, which implies that no physical proximity or prior authentication credentials are required for exploitation. An attacker can initiate malicious requests from any remote location on the network where the vulnerable service is reachable, leveraging standard web protocols to interact with the flawed security controls. This lack of access control mechanisms allows external entities to bypass intended authorization boundaries and execute actions reserved exclusively for privileged users or system administrators.
The technical nature of this vulnerability centers around a failure in input validation and authentication enforcement within the HTTP request handling subsystems. By exploiting these weaknesses, an adversary can manipulate critical data structures without valid session tokens or user credentials. The consequences are severe, encompassing both unauthorized modification and deletion of sensitive financial records as well as the potential for complete denial of service conditions. Specifically, successful exploitation enables the creation, alteration, or removal of essential configuration settings and business-critical datasets stored within the Hyperion database. This directly undermines data integrity, a core pillar of information security, allowing attackers to inject fraudulent transactions, erase audit trails, or corrupt financial reports that rely on accurate historical data for regulatory compliance and strategic decision-making.
Beyond data manipulation, the vulnerability poses a significant threat to system availability through resource exhaustion techniques. Attackers can trigger conditions that lead to application hangs or frequent, repeatable crashes of the Oracle Hyperion Financial Management service. This capability effectively results in a complete denial of service, rendering the platform inaccessible to legitimate users and disrupting business operations. The high severity rating reflects this dual impact on integrity and availability, with confidentiality impacts being less pronounced but still possible depending on specific data exposure vectors triggered during exploitation. The CVSS 3.1 base score of 9.1 underscores the critical nature of this flaw, indicating that immediate remediation is necessary to prevent potential large-scale compromise in enterprise environments where such financial systems are pivotal.
From a classification perspective, this vulnerability aligns with CWE-287, which denotes Improper Authentication, and potentially CWE-352 for Cross-Site Request Forgery if the exploitation relies on tricking authenticated users into performing unintended actions, although the unauthenticated aspect suggests more fundamental access control failures such as CWE-862 or CWE-915. In terms of adversary tactics, this aligns with MITRE ATT&CK techniques related to Initial Access and Defense Evasion, specifically those involving exploitation of public-facing applications for unauthorized data modification or service disruption. The ability to cause a hang or crash also correlates with availability-focused attacks often seen in distributed denial-of-service scenarios but executed at the application layer rather than the network layer.
Mitigation strategies must prioritize immediate patching by Oracle Hyperion Financial Management administrators to apply the latest security updates provided by Oracle Corporation. Until patches are deployed, organizations should implement strict network segmentation rules that restrict HTTP access to the vulnerable component solely from trusted internal subnets or specific management IP addresses using firewall policies. Additionally, deploying a Web Application Firewall can help filter out malicious payloads and anomalous request patterns associated with exploitation attempts. It is also advisable to enforce robust logging and monitoring solutions to detect unusual spikes in error rates or unauthorized data modification events that may indicate active exploitation of this vulnerability. Regular audits of access controls and authentication mechanisms across the Hyperion deployment are essential to ensure no residual misconfigurations remain after patching.