CVE-2026-71149 Overview
CVE-2026-71149 is a medium-severity vulnerability in the Security component of Oracle Hyperion Financial Management version 11.2.25.0.000. The flaw allows a low-privileged attacker with local logon access to the infrastructure hosting the application to compromise the deployment. Successful exploitation requires human interaction from a user other than the attacker and is rated difficult to exploit. Impact includes unauthorized read access to a subset of data, unauthorized update, insert, or delete access to some data, and partial denial of service. The weakness maps to [CWE-284: Improper Access Control].
Critical Impact
Successful exploitation yields limited unauthorized data modification, partial data disclosure, and partial denial of service against Oracle Hyperion Financial Management.
Affected Products
- Oracle Hyperion Financial Management 11.2.25.0.000
- Oracle Hyperion (Security component)
- Deployments running the affected version on supported infrastructure
Discovery Timeline
- 2026-08-18 - CVE-2026-71149 published to the National Vulnerability Database (NVD)
- 2026-08-20 - Last updated in NVD database
- August 2026 - Addressed in the Oracle Security Alert August 2026
Technical Details for CVE-2026-71149
Vulnerability Analysis
The vulnerability resides in the Security component of Oracle Hyperion Financial Management, an enterprise performance management platform used for financial consolidation and reporting. An authenticated local attacker can leverage improper access control to interact with functionality that should be restricted. Because exploitation requires user interaction from a separate victim, the attack typically requires social engineering or convincing a legitimate user to perform an action that triggers the flawed code path. Exploitation produces limited effects across confidentiality, integrity, and availability rather than full system compromise.
Root Cause
Oracle categorizes the underlying weakness as improper access control [CWE-284]. Access decisions in the Security component do not fully enforce the intended trust boundaries when a low-privileged local user coordinates activity with another authenticated user. The result is that operations reachable through this path bypass expected authorization checks on a subset of data.
Attack Vector
The attack vector is local. An attacker must already possess valid low-privileged credentials and logon access to the infrastructure where Oracle Hyperion Financial Management executes. The attacker then induces a separate user, typically through social engineering or a crafted workflow, to perform an action that exercises the vulnerable code path. Attack complexity is high, reflecting the difficulty of reliably chaining the required conditions.
No verified public proof-of-concept or exploit code is available. See the Oracle Security Alert August 2026 for vendor technical details.
Detection Methods for CVE-2026-71149
Indicators of Compromise
- Unexpected create, update, or delete operations against Hyperion Financial Management data performed by low-privileged accounts.
- Anomalous local logons to Hyperion application servers followed by user-initiated workflow actions from a second account.
- Partial availability degradation or intermittent service faults in Hyperion Financial Management processes without a corresponding change ticket.
Detection Strategies
- Audit Hyperion Financial Management security logs for authorization anomalies where actions succeed for users lacking the expected role.
- Correlate operating system logon events on Hyperion hosts with application-level user actions to surface coordinated multi-user sequences.
- Baseline normal data-modification volumes per role and alert on deviations targeting the Security component.
Monitoring Recommendations
- Forward Hyperion application, database, and OS logs to a centralized analytics platform for correlation and retention.
- Monitor privileged group membership and role assignments in Hyperion for unauthorized changes.
- Track user interaction workflows initiated shortly after low-privileged local logons on Hyperion infrastructure.
How to Mitigate CVE-2026-71149
Immediate Actions Required
- Apply the patch delivered in the Oracle Security Alert August 2026 to all Oracle Hyperion Financial Management 11.2.25.0.000 instances.
- Inventory affected Hyperion hosts and confirm patch deployment status across production and non-production environments.
- Review and tighten local logon rights on Hyperion Financial Management infrastructure to remove unnecessary interactive access.
Patch Information
Oracle addressed CVE-2026-71149 in the August 2026 Critical Patch Update. Administrators should follow the remediation guidance in the Oracle Security Alert August 2026 and validate patch application against Oracle's documented version metadata.
Workarounds
- Restrict interactive and remote logon rights on Hyperion Financial Management servers to a minimal set of administrators.
- Enforce least privilege on Hyperion application roles and review role assignments for the Security component.
- Deliver targeted user awareness guidance to reduce the likelihood of the required user interaction being successfully solicited.
- Enable detailed application and OS auditing on Hyperion hosts to shorten detection time until patching completes.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
