CVE-2026-70919 Overview
CVE-2026-70919 affects the Security component of Oracle Hyperion Financial Management version 11.2.25.0.000. The vulnerability allows an unauthenticated attacker with logon access to the infrastructure hosting the application to compromise integrity. Exploitation is difficult and requires human interaction from a user other than the attacker. Successful attacks result in unauthorized update, insert, or delete access to a subset of application data. The weakness is categorized under improper access control [CWE-284].
Critical Impact
Successful exploitation permits unauthorized modification of a limited set of Oracle Hyperion Financial Management data through local access combined with victim interaction.
Affected Products
- Oracle Hyperion Financial Management 11.2.25.0.000
- Oracle Hyperion product family (Security component)
- Deployments running on infrastructure accessible via local logon
Discovery Timeline
- 2026-08-18 - CVE-2026-70919 published to NVD
- 2026-08-22 - Last updated in NVD database
Technical Details for CVE-2026-70919
Vulnerability Analysis
The flaw resides in the Security component of Oracle Hyperion Financial Management. An attacker who can log on to the infrastructure where the application runs can trigger the condition, but the attack path is difficult to execute. Exploitation requires an additional user to perform an action, chaining local access with social interaction. The resulting impact is limited to integrity, allowing partial write access to application data without affecting confidentiality or availability.
Root Cause
The issue maps to [CWE-284: Improper Access Control]. The Security component does not sufficiently enforce authorization boundaries when specific conditions are met, permitting an attacker positioned on the host to influence data modifications performed by another user.
Attack Vector
The attack vector is local. The attacker requires logon access to the infrastructure hosting Oracle Hyperion Financial Management but does not need application-level credentials. Successful exploitation additionally requires interaction from a second user, such as opening or acting on attacker-influenced content. No verified public proof-of-concept exists, and the vulnerability is not listed in the CISA Known Exploited Vulnerabilities catalog. See the Oracle Security Alert - August 2026 for vendor technical details.
Detection Methods for CVE-2026-70919
Indicators of Compromise
- Unexpected modifications, inserts, or deletes to Hyperion Financial Management data records without a corresponding authorized change ticket.
- Local logon events on Hyperion infrastructure hosts from accounts that do not typically access those systems.
- Application audit log entries showing data changes performed shortly after suspicious user interaction events.
Detection Strategies
- Enable and review Hyperion Financial Management application audit logs for anomalous write operations against sensitive financial records.
- Correlate operating system logon events with subsequent application-level data modifications to identify unusual sequences.
- Baseline normal user interaction patterns and alert on deviations, particularly involving privileged financial workflows.
Monitoring Recommendations
- Forward Hyperion application, OS, and authentication logs to a centralized analytics platform for correlation and retention.
- Monitor infrastructure host access for unauthorized local accounts and privilege changes.
- Track file and configuration changes on Hyperion servers using integrity monitoring controls.
How to Mitigate CVE-2026-70919
Immediate Actions Required
- Apply the fixes referenced in the Oracle Security Alert - August 2026 to affected Hyperion Financial Management instances.
- Inventory all systems running Oracle Hyperion Financial Management 11.2.25.0.000 and prioritize patch deployment.
- Restrict local logon rights on Hyperion infrastructure hosts to a minimal set of administrators.
Patch Information
Oracle addressed this issue in the August 2026 Critical Patch Update cycle. Administrators should consult the Oracle Security Alert - August 2026 advisory for patch identifiers, prerequisites, and installation guidance specific to Hyperion Financial Management 11.2.25.0.000.
Workarounds
- Limit interactive and remote logon access to Hyperion servers using group policy and network segmentation.
- Enforce security awareness training to reduce the likelihood of the required user interaction step succeeding.
- Increase audit logging verbosity for the Security component and review logs on a defined cadence until patches are applied.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
