CVE-2026-87221 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. CVSS 3.1 Base Score 7.5 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/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 allows an unauthenticated attacker to compromise the integrity and confidentiality of the application environment. The attack vector is network-based via HTTP, meaning no physical access or prior authentication credentials are required for exploitation. An adversary with basic network connectivity to the target system can initiate attacks remotely, leveraging standard web protocols to interact with vulnerable endpoints within the Hyperion Financial Management suite.
The technical nature of this flaw centers on an authorization bypass that permits unauthorized data retrieval. Because the vulnerability allows unauthenticated access, it effectively neutralizes the authentication controls designed to protect sensitive financial records and operational data housed within the system. The impact is severe, as successful exploitation grants the attacker complete or near-complete read access to all accessible Oracle Hyperion Financial Management data. This includes highly confidential financial statements, budgeting models, forecasting data, and other critical business intelligence assets that are typically restricted to authorized personnel only.
From a classification perspective, this vulnerability aligns with CWE-287, which describes Improper Authentication, as well as CWE-862, Missing Authorization, depending on the specific implementation details of how access controls were bypassed. The high confidentiality impact is reflected in the CVSS 3.1 base score of 7.5, categorized as High severity. The vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N) indicates that while there are no impacts on integrity or availability, the breach in confidentiality is total for accessible data. In terms of offensive security frameworks such as MITRE ATT&CK, this vulnerability facilitates techniques related to Initial Access and Credential Access, specifically allowing attackers to harvest sensitive information without triggering typical authentication failure alerts associated with brute-force attacks.
The operational impact of exploiting this vulnerability extends beyond immediate data theft. Exposure of financial management data can lead to significant regulatory compliance violations under frameworks such as SOX, GDPR, or HIPAA if applicable personal health or financial data is exposed. Furthermore, the loss of confidentiality undermines trust in the organization's financial reporting processes and may result in substantial reputational damage and legal liability. Attackers could use this information for competitive intelligence gathering, fraud preparation, or as a stepping stone for further lateral movement within the corporate network if additional vulnerabilities are present.
Mitigation strategies must prioritize immediate remediation through vendor-provided patches. Organizations running Oracle Hyperion Financial Management version 11.2.26.0.000 should apply the latest security updates released by Oracle to address this specific flaw in the Security component. In cases where patching is not immediately feasible, network-level controls such as Web Application Firewalls (WAF) can be configured to block requests targeting known vulnerable endpoints or exhibiting patterns consistent with exploitation attempts. Additionally, restricting HTTP access to only trusted IP ranges and enforcing strict firewall rules to limit exposure of Hyperion services to the public internet are critical defensive measures. Regular security audits and penetration testing should also be conducted to identify similar authorization weaknesses in other components of the application suite.