CVE-2026-70895 Overview
CVE-2026-70895 affects the Oracle Hyperion Data Relationship Management product within the Oracle Hyperion suite. The flaw resides in the Access and security component of version 11.2.25.0.000. A low-privileged attacker with local logon access to the infrastructure running the application can exploit this weakness. Successful exploitation grants unauthorized access to critical data or complete read access to all data accessible by Oracle Hyperion Data Relationship Management. The vulnerability carries a scope change, meaning attacks may impact additional products beyond the vulnerable component. Oracle addressed the issue in the August 2026 Critical Patch Update.
Critical Impact
Local, low-privileged attackers can obtain full read access to sensitive Oracle Hyperion Data Relationship Management data with impact extending to additional connected products.
Affected Products
- Oracle Hyperion Data Relationship Management version 11.2.25.0.000
- Oracle Hyperion product family (Access and security component)
- Downstream products affected by the scope change condition
Discovery Timeline
- 2026-08-18 - CVE-2026-70895 published to the National Vulnerability Database
- 2026-08-22 - Last updated in NVD database
- August 2026 - Oracle Security Alert published addressing the issue
Technical Details for CVE-2026-70895
Vulnerability Analysis
The vulnerability is classified under [CWE-284: Improper Access Control]. It resides in the Access and security component of Oracle Hyperion Data Relationship Management, the module responsible for enforcing authorization on data operations. An authenticated user with minimal privileges can bypass intended access restrictions and read data they are not authorized to view. The scope change designation indicates that the vulnerable component exposes resources belonging to a different security authority. This means the exploitation impact extends beyond Data Relationship Management into other Oracle Hyperion products that trust its access decisions.
Root Cause
The root cause is improper enforcement of access control policies within the Access and security component. The module fails to correctly validate the requesting principal's entitlements before returning sensitive records. As a result, low-privileged accounts inherit visibility over data reserved for higher-privileged roles.
Attack Vector
Exploitation requires local logon to the host executing Oracle Hyperion Data Relationship Management. The attacker must hold valid low-privilege credentials on that infrastructure. No user interaction is needed, and the attack complexity is low. The confidentiality impact is high, while integrity and availability remain unaffected. See the Oracle Security Alert August 2026 for authoritative technical details.
No public proof-of-concept code has been released for this vulnerability. Refer to the vendor advisory for further technical description.
Detection Methods for CVE-2026-70895
Indicators of Compromise
- Unexpected read operations against Data Relationship Management metadata by low-privileged accounts
- Access to hierarchies, node properties, or versions outside of a user's assigned scope
- Anomalous session activity originating from local interactive or service accounts on the Hyperion server
Detection Strategies
- Audit Oracle Hyperion Data Relationship Management application logs for authorization decisions granting broader-than-expected access
- Correlate operating system logon events on the Hyperion host with subsequent application-level read activity
- Baseline normal query and export volumes per role and alert on statistical deviations
Monitoring Recommendations
- Forward Hyperion audit logs and Windows Security Event logs to a centralized analytics platform for correlation
- Monitor privileged data exports and property browsing by non-administrative accounts
- Track new local logons to Hyperion infrastructure and validate against approved change tickets
How to Mitigate CVE-2026-70895
Immediate Actions Required
- Apply the fixes distributed in the Oracle Security Alert August 2026 to all Oracle Hyperion Data Relationship Management deployments
- Inventory systems running version 11.2.25.0.000 and prioritize patching those with sensitive financial or master data
- Review and reduce the population of accounts holding local logon rights on Hyperion servers
Patch Information
Oracle released remediation as part of the August 2026 Critical Patch Update cycle. Administrators should download and apply the patch bundle referenced in the Oracle Security Alert. Verify version strings after patching to confirm remediation status.
Workarounds
- Restrict interactive and remote logon rights on Oracle Hyperion Data Relationship Management servers to a minimal set of administrators
- Enforce network segmentation so only jump hosts can reach the Hyperion application tier
- Enable full application-level auditing to increase the cost of undetected exploitation until the patch is applied
Refer to the Oracle Security Alert August 2026 for the definitive patch procedure and configuration guidance.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
