CVE-2026-70685 Overview
CVE-2026-70685 is a security vulnerability in the Oracle Hyperion Calculation Manager product, part of the Oracle Hyperion suite. The flaw resides in the Security component and affects supported version 11.2.25.0.000. An unauthenticated attacker with local logon access to the infrastructure where Oracle Hyperion Calculation Manager runs can exploit the weakness. Successful exploitation can lead to unauthorized read access across all data accessible to the product and limited write, insert, or delete access to a subset of that data. Oracle categorizes the issue as easily exploitable, and the scope change indicates that attacks may impact components beyond Calculation Manager itself.
Critical Impact
Unauthenticated local attackers can gain complete read access and partial write access to Oracle Hyperion Calculation Manager data, with potential impact on additional Oracle Hyperion components due to scope change.
Affected Products
- Oracle Hyperion Calculation Manager version 11.2.25.0.000
- Oracle Hyperion (Security component)
- Additional Oracle Hyperion components potentially impacted via scope change
Discovery Timeline
- 2026-08-18 - CVE-2026-70685 published to NVD
- 2026-08-20 - Last updated in NVD database
Technical Details for CVE-2026-70685
Vulnerability Analysis
The vulnerability affects the Security component of Oracle Hyperion Calculation Manager. Oracle's advisory indicates that an unauthenticated attacker with local logon access to the infrastructure hosting the product can compromise the application. The scope change designation means the compromise crosses a security boundary and can affect resources beyond the immediate vulnerable component.
The impact profile shows high confidentiality loss and low integrity loss. Attackers can read all data accessible to Oracle Hyperion Calculation Manager. They can also perform unauthorized update, insert, or delete operations against a limited subset of that data. Availability is not directly impacted.
Because Oracle Hyperion is commonly deployed for financial consolidation, planning, and reporting, exposure of accessible data can include sensitive financial records. Oracle categorizes the issue as easily exploitable, which raises the operational urgency for administrators of affected environments.
Root Cause
Oracle has not published detailed technical root-cause information beyond the Oracle Security Alert. The flaw resides in the Security component, indicating an authentication, authorization, or access-control weakness that allows an attacker without prior credentials to interact with protected functionality once local infrastructure access is achieved.
Attack Vector
The attack vector is local, requiring the attacker to have logon access to the infrastructure where Oracle Hyperion Calculation Manager executes. No prior authentication to the application itself is required, and no user interaction is needed. Once on the host, the attacker can leverage the Security component flaw to reach data owned by Calculation Manager and, due to scope change, other Oracle Hyperion assets.
No public proof-of-concept exploit code has been published for CVE-2026-70685. Refer to the Oracle Security Alert for vendor-authoritative technical details.
Detection Methods for CVE-2026-70685
Indicators of Compromise
- Unexpected local logons to Oracle Hyperion Calculation Manager hosts by service or shared accounts
- Anomalous read access to Calculation Manager application data or configuration files
- Unauthorized modifications, insertions, or deletions in Calculation Manager-managed records
- Process execution or file access patterns from Calculation Manager binaries that deviate from operational baselines
Detection Strategies
- Correlate local authentication events on Hyperion infrastructure with subsequent access to Calculation Manager services
- Baseline normal query and data-access volumes against Hyperion databases and alert on deviations
- Monitor Calculation Manager audit logs for security-component operations that occur without a corresponding authenticated session
Monitoring Recommendations
- Forward Oracle Hyperion application, WebLogic, and OS logs to a centralized analytics platform for correlation
- Enable and retain database audit trails for Hyperion schemas to identify unauthorized reads or writes
- Review privileged and interactive logons to Hyperion servers on a scheduled cadence
- Alert on configuration or permission changes to the Calculation Manager Security component
How to Mitigate CVE-2026-70685
Immediate Actions Required
- Apply the fixes referenced in the Oracle Security Alert for Oracle Hyperion Calculation Manager 11.2.25.0.000
- Restrict local logon rights on Hyperion infrastructure to a minimal set of administrative accounts
- Rotate credentials for accounts with interactive access to Hyperion servers
- Review recent access to Calculation Manager data and validate the integrity of financial records
Patch Information
Oracle addresses CVE-2026-70685 in the August 2026 security update cycle. Administrators should consult the Oracle Security Alert for the exact patch identifiers, prerequisite bundle patches, and applicability notes for Oracle Hyperion Calculation Manager 11.2.25.0.000.
Workarounds
- Enforce network segmentation so that only jump hosts and administrative workstations can reach Hyperion infrastructure
- Disable unused local accounts and remove interactive logon rights from service identities
- Require multi-factor authentication for administrative access to servers hosting Calculation Manager
- Increase audit logging verbosity on Hyperion hosts until the vendor patch is fully deployed
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
