CVE-2026-70876: Oracle Hyperion DRM Privilege Escalation

CVE-2026-70876 Overview

CVE-2026-70876 is a critical vulnerability in the Access and security component of Oracle Hyperion Data Relationship Management. The affected supported version is 11.2.25.0.000. An authenticated attacker holding high privileges can exploit the flaw over the network using HTTPS. Successful exploitation results in complete takeover of Oracle Hyperion Data Relationship Management. The vulnerability carries a scope change, meaning attacks may significantly impact additional products beyond the vulnerable component. Oracle documented the issue in the Oracle Security Alert August 2026.

Critical Impact
Authenticated high-privileged attackers can achieve full compromise of Oracle Hyperion Data Relationship Management with impact extending to additional connected products.

Affected Products

Oracle Hyperion Data Relationship Management 11.2.25.0.000
Oracle Hyperion product family (Access and security component)
Downstream products impacted through scope change

Discovery Timeline

2026-08-18 - CVE-2026-70876 published to the National Vulnerability Database (NVD)
2026-08-18 - Oracle releases guidance in the August 2026 Security Alert
2026-08-20 - Last updated in NVD database

Technical Details for CVE-2026-70876

Vulnerability Analysis

The flaw resides in the Access and security component of Oracle Hyperion Data Relationship Management (DRM). DRM manages master data hierarchies and governance across enterprise financial and analytics systems. A weakness in privileged access handling allows an authenticated attacker to escalate control and take over the DRM instance. The scope change indicator signals that the exploit can cross security boundaries to affect other Oracle Hyperion components that rely on DRM for authoritative master data. Confidentiality, integrity, and availability are all fully impacted on successful exploitation.

Root Cause

Oracle has not published detailed root cause information beyond identifying the Access and security component. The vulnerability is classified as an access control and authorization weakness within privileged DRM operations exposed over HTTPS. Refer to the Oracle Security Alert August 2026 for vendor-provided detail.

Attack Vector

Exploitation requires network access to the DRM HTTPS endpoint and a valid account with high privileges. The attack requires no user interaction and low attack complexity. Because the vulnerability produces a scope change, an attacker with a foothold in DRM can pivot the impact to related Hyperion products that trust DRM outputs and identity assertions. No public proof-of-concept exploit is currently available, and EPSS data reflects a modest short-term exploitation likelihood.

No verified exploit code is published. See the vendor advisory for technical details.

Detection Methods for CVE-2026-70876

Indicators of Compromise

Unexpected privilege changes, role assignments, or hierarchy modifications inside Oracle Hyperion DRM
Anomalous authenticated HTTPS sessions to DRM administrative endpoints from unusual source IPs or off-hours
Configuration or metadata export operations initiated by high-privileged accounts without a documented change ticket
Cross-product access events where DRM identities suddenly perform actions in downstream Hyperion applications

Detection Strategies

Baseline normal high-privilege DRM administrative activity and alert on deviations in frequency, source, or scope
Correlate DRM audit logs with authentication logs from the identity provider to spot compromised privileged accounts
Monitor for scope-change indicators such as DRM service accounts acting on adjacent Hyperion components
Ingest DRM application and web server logs into a centralized analytics platform for behavior-based analysis

Monitoring Recommendations

Forward Hyperion DRM audit trails, IIS or web tier logs, and OS logs to your SIEM or data lake
Alert on privilege escalations, new administrator role grants, and modifications to security policy objects
Track outbound calls from DRM hosts to other Hyperion services and flag deviations from baseline
Review privileged session recordings for administrative changes tied to CVE-2026-70876 exploitation patterns

How to Mitigate CVE-2026-70876

Immediate Actions Required

Apply the patch referenced in the Oracle Security Alert August 2026 to affected DRM 11.2.25.0.000 deployments
Inventory all Oracle Hyperion DRM instances and confirm version and patch state
Rotate credentials for high-privileged DRM accounts and enforce multi-factor authentication where supported
Restrict network reachability of the DRM HTTPS endpoint to authorized administrative networks only

Patch Information

Oracle addressed CVE-2026-70876 in the August 2026 Security Alert cycle. Administrators should review the Oracle Security Alert August 2026 for the specific patch bundle applicable to Oracle Hyperion Data Relationship Management version 11.2.25.0.000 and follow Oracle's documented installation procedure in a staged environment before production rollout.

Workarounds

Limit DRM administrative role membership to the minimum required set of accounts
Segment the DRM server behind an internal firewall and require VPN or bastion access for administrative sessions
Enable and review DRM audit logging for privileged operations until the patch is applied
Disable or suspend unused high-privilege service accounts that could be abused during the exposure window

bash

# Example: restrict DRM HTTPS endpoint to administrative subnet (Windows firewall)
netsh advfirewall firewall add rule name="Restrict Hyperion DRM HTTPS" ^
  dir=in action=allow protocol=TCP localport=443 ^
  remoteip=10.10.20.0/24 profile=domain