CVE-2026-87199 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 ability to cause a hang or frequently repeatable crash (complete DOS) of Oracle Hyperion Financial Management. CVSS 3.1 Base Score 7.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).
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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 allows an unauthenticated attacker to exploit the system over a network connection via HTTP without requiring any user interaction or prior authentication credentials. The nature of this vulnerability is characterized by its ease of exploitation, which significantly lowers the barrier for malicious actors seeking to disrupt services hosted on vulnerable instances. By leveraging standard web protocols, attackers can target the application directly through exposed endpoints that fail to properly validate input or manage session states during specific operations within the security module.
From a technical perspective, this vulnerability is primarily an availability issue rather than one involving data confidentiality or integrity. The core flaw likely involves improper handling of requests that leads to resource exhaustion or state corruption within the server process. When triggered, the defect causes Oracle Hyperion Financial Management to become unresponsive or enter into a loop that results in frequent and repeatable crashes. This behavior effectively constitutes a Denial of Service condition where the application fails to recover gracefully from malformed or maliciously crafted inputs sent over HTTP. The lack of authentication requirements means that any entity with network reachability to the server can initiate this attack vector, making it particularly dangerous for systems exposed to public networks or untrusted internal segments.
The operational impact of this vulnerability is severe due to its direct effect on service availability. A successful exploitation results in a complete Denial of Service, rendering Oracle Hyperion Financial Management unavailable to legitimate users who rely on the platform for financial reporting and analysis tasks. Since the application hangs or crashes repeatedly, system administrators must manually intervene to restart services, leading to significant downtime and potential data inconsistency if transactions were being processed at the time of failure. The CVSS 3.1 base score of 7.5 reflects this high severity level, driven by the network-accessible nature of the attack, low complexity, absence of required privileges for the attacker, and the substantial impact on availability while maintaining no direct compromise to confidentiality or integrity.
In terms of industry standard classifications, this vulnerability aligns with CWE-400, which covers uncontrolled resource consumption leading to denial of service conditions. It also maps closely to MITRE ATT&CK techniques related to Service Availability Impact, specifically those involving application layer attacks that exploit logic flaws to exhaust system resources or crash processes. The attack vector corresponds to Network Accessible Attack Paths where the adversary utilizes standard web protocols to deliver payloads without authentication. Understanding these mappings helps in categorizing the risk within broader threat intelligence frameworks and ensures that mitigation strategies address both the immediate technical flaw and the underlying architectural weaknesses that permit such unauthenticated access.
To mitigate this vulnerability, organizations should immediately apply the latest security patches provided by Oracle for Hyperion Financial Management version 11.2.26.0.000 or later affected versions. Until patching is feasible, implementing network-level controls is essential to restrict access to the vulnerable components. This includes configuring firewalls and web application firewalls to block unauthorized HTTP traffic targeting the specific endpoints associated with the security module. Additionally, enforcing strict input validation at the gateway level can help filter out malformed requests before they reach the application server. Regular monitoring of system logs for signs of repeated crashes or unusual resource consumption patterns will aid in early detection of exploitation attempts. It is also advisable to review network segmentation strategies to ensure that critical financial applications are not directly exposed to untrusted networks, thereby reducing the attack surface available to potential adversaries.