CVE-2026-70714: Oracle Hyperion Privilege Escalation Flaw

CVE-2026-70714 Overview

CVE-2026-70714 affects the Oracle Hyperion Calculation Manager product within Oracle Hyperion. The vulnerability resides in the Security component of version 11.2.25.0.000. A high-privileged attacker with local logon access to the infrastructure where Oracle Hyperion Calculation Manager runs can compromise the application. Successful exploitation permits unauthorized creation, deletion, or modification of critical data accessible to Oracle Hyperion Calculation Manager. The flaw affects data integrity only and does not impact confidentiality or availability.

Critical Impact
Authenticated local attackers can create, delete, or modify data across the Oracle Hyperion Calculation Manager environment, undermining the integrity of financial planning and reporting data.

Affected Products

Oracle Hyperion Calculation Manager 11.2.25.0.000
Oracle Hyperion (Security component)
Deployments running the supported Hyperion Calculation Manager release

Discovery Timeline

2026-08-18 - CVE-2026-70714 published to NVD
2026-08-20 - Last updated in NVD database

Technical Details for CVE-2026-70714

Vulnerability Analysis

The vulnerability exists in the Security component of Oracle Hyperion Calculation Manager. Oracle categorizes exploitation as difficult, requiring local access and high privileges on the host infrastructure. Once an attacker meets those preconditions, they can subvert integrity controls within the Calculation Manager application. Successful attacks allow write access to critical Hyperion data without user interaction. The scope remains unchanged, and the impact is confined to data managed by the vulnerable component.

Root Cause

Oracle has not published detailed root-cause information beyond identifying the flaw within the Security component of the Calculation Manager product. The advisory indicates a broken access control condition that lets a privileged local principal modify data the security model should protect. Refer to the Oracle Security Alert for vendor guidance.

Attack Vector

Exploitation requires the attacker to already possess high privileges and a valid logon session on the infrastructure hosting Oracle Hyperion Calculation Manager. No user interaction is required. Attack complexity is high, meaning an attacker must satisfy conditions outside their direct control to succeed. The impact is limited to integrity of Calculation Manager data.

No verified proof-of-concept code is publicly available. See the Oracle Security Alert for authoritative technical details.

Detection Methods for CVE-2026-70714

Indicators of Compromise

Unexpected creation, modification, or deletion of Calculation Manager rules, rule sets, or business logic artifacts.
Administrative or high-privilege logons to Hyperion hosts outside approved maintenance windows.
Audit-log entries showing security-component operations executed by accounts not associated with Hyperion administrators.

Detection Strategies

Enable and forward Oracle Hyperion Calculation Manager audit logs to a centralized log platform for correlation.
Baseline normal administrator activity on Hyperion hosts and alert on deviations in privileged process execution.
Monitor file and configuration integrity for Calculation Manager artifacts and Security component configuration files.

Monitoring Recommendations

Track interactive and remote logon events on Hyperion infrastructure with attention to accounts holding local administrator or Oracle service privileges.
Alert on out-of-band changes to calculation rules or security assignments that bypass established change-management workflows.
Review database transaction logs backing the Hyperion repository for unexpected write activity tied to the Calculation Manager schema.

How to Mitigate CVE-2026-70714

Immediate Actions Required

Apply the Oracle Critical Patch Update referenced in the Oracle Security Alert as soon as change control allows.
Inventory Hyperion deployments to confirm which hosts run Calculation Manager version 11.2.25.0.000.
Restrict local and remote logon rights on Hyperion servers to a minimal set of vetted administrators.

Patch Information

Oracle addresses this vulnerability in the August 2026 Critical Patch Update cycle. Consult the Oracle Security Alert for the applicable patch bundle, prerequisites, and installation order for Hyperion environments.

Workarounds

Enforce least privilege on the Hyperion host operating system and remove standing high-privilege access where not required.
Require multi-factor authentication and jump-host access for administrators managing Hyperion infrastructure.
Increase audit-log retention and review cadence for the Calculation Manager Security component until patching is complete.

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# Configuration example
# Refer to the Oracle Security Alert for vendor-provided mitigation commands:
# https://www.oracle.com/security-alerts/cspuaug2026.html