CVE-2026-70682 in Hyperion Calculation Manager
Summary
by MITRE • 08/19/2026
Vulnerability in the Oracle Hyperion Calculation Manager product of Oracle Hyperion (component: Security). 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 Calculation Manager. Successful attacks of this vulnerability can result in unauthorized read access to a subset of Oracle Hyperion Calculation Manager accessible data. CVSS 3.1 Base Score 3.7 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N).
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Analysis
by VulDB Data Team • 08/19/2026
The identified vulnerability resides within the Security component of Oracle Hyperion Calculation Manager, specifically affecting version 11.2.25.0.000 and potentially other supported releases in that lineage. This flaw represents a critical gap in the application's authentication and authorization mechanisms, allowing for unauthorized access to sensitive system resources without requiring valid credentials from an external actor. The nature of this defect classifies it as an unauthenticated vulnerability, meaning that any individual with network connectivity to the affected service can attempt to exploit it without prior login or session establishment. This characteristic significantly lowers the barrier to entry for potential attackers compared to vulnerabilities that require initial authentication, thereby increasing the overall risk profile associated with deploying this software version in internet-facing environments.
From a technical perspective, the vulnerability is characterized by its difficulty of exploitation, which suggests that while the underlying logic flaw exists and can be triggered via HTTP requests, it may not be easily automated or reliably exploitable across all target systems without specific conditions or precise timing. The attack vector is network-based over HTTP, indicating that the exploit does not require physical access to the server nor interaction with a local user interface on the host machine. Instead, an attacker can initiate the malicious activity remotely by crafting and sending specially designed HTTP requests to the Calculation Manager service endpoints. This remote accessibility makes it particularly dangerous in cloud or hybrid infrastructure deployments where management interfaces might be exposed to broader network segments than intended.
The operational impact of a successful exploitation is primarily confined to confidentiality breaches rather than integrity or availability disruptions. Specifically, an attacker can gain unauthorized read access to a subset of data accessible within the Oracle Hyperion Calculation Manager environment. This could include sensitive financial models, calculation rules, metadata configurations, or other proprietary business logic stored and managed by the application. While the CVSS 3.1 base score is rated at 3.7 with low confidentiality impact, this metric reflects that only a limited portion of data may be exposed rather than total system compromise. However, even partial exposure of financial calculation models can lead to significant competitive disadvantage or regulatory non-compliance depending on the sensitivity of the underlying business processes involved.
In terms of industry standard classifications, this vulnerability aligns with CWE-287, which denotes Improper Authentication, as it allows an actor to bypass required authentication checks. Furthermore, given that the attacker leverages network access via HTTP to achieve unauthorized data retrieval without user interaction, it maps closely to MITRE ATT&CK technique T1078, specifically Valid Accounts or Default Accounts if default credentials are involved, though in this case, no account is needed at all. The lack of required user interface interaction places it under the Initial Access category where automated tools could potentially be used once the specific exploit vector is identified by threat actors scanning for such weaknesses.
Mitigation strategies should focus on immediate remediation through patching and network-level controls. Oracle has likely released a security update or patch that addresses this authentication bypass flaw; therefore, applying the latest available patches to version 11.2.25.0.000 is the primary recommendation. In addition to software updates, organizations should implement strict access control lists on their firewalls and network segmentation strategies to ensure that the Calculation Manager HTTP interface is not directly accessible from untrusted networks such as the public internet. If remote administrative access is required, it must be routed through a secure bastion host or VPN with multi-factor authentication enabled for all human administrators. Regular vulnerability scanning should also be conducted to detect any instances of this specific version running in exposed environments before attackers can leverage the difficulty-of-exploitation factor against them.