CVE-2026-70884: Oracle Hyperion DRM Auth Bypass Vulnerability

CVE-2026-70884 Overview

CVE-2026-70884 is a critical vulnerability in Oracle Hyperion Data Relationship Management (DRM), affecting the Access and security component. The flaw exists in version 11.2.25.0.000. An unauthenticated attacker with network access via Simple Object Access Protocol (SOAP) can compromise the application without user interaction. Successful exploitation grants attackers unauthorized read, create, delete, or modify access to all data accessible through Oracle Hyperion DRM. Oracle disclosed the issue in the August 2026 Critical Patch Update Security Alert.

Critical Impact
Unauthenticated remote attackers can read and modify all data accessible to Oracle Hyperion Data Relationship Management through the exposed SOAP interface.

Affected Products

Oracle Hyperion Data Relationship Management 11.2.25.0.000
Oracle Hyperion product family (Access and security component)
SOAP-exposed Hyperion DRM deployments

Discovery Timeline

2026-08-18 - CVE-2026-70884 published to the National Vulnerability Database
2026-08-20 - Last updated in NVD database

Technical Details for CVE-2026-70884

Vulnerability Analysis

The vulnerability resides in the Access and security component of Oracle Hyperion Data Relationship Management. The SOAP interface fails to enforce authentication or authorization checks before processing sensitive operations. Attackers can invoke SOAP operations directly over the network to read or manipulate managed master data.

Oracle Hyperion DRM governs master data hierarchies used across financial consolidation, planning, and analytics workflows. Compromise of this data undermines the integrity of downstream reporting systems. The confidentiality and integrity impacts are both rated high, while availability is not directly affected.

Root Cause

The root cause is a broken access control condition [Broken Access Control] in the SOAP endpoint exposed by Oracle Hyperion DRM. The service accepts network requests without requiring valid credentials or session context. This allows anonymous clients to reach operations that should be restricted to authenticated administrators.

Attack Vector

Attack complexity is low and no privileges or user interaction are required. An attacker sends crafted SOAP requests to the Hyperion DRM SOAP endpoint over the network. Because the flaw is unauthenticated, exposure of the SOAP interface to untrusted networks materially increases risk. The Exploit Prediction Scoring System (EPSS) currently reports a probability of 0.398% as of 2026-08-23, though public exploit code is not yet available.

Refer to the Oracle Security Alert August 2026 for vendor-provided technical context.

Detection Methods for CVE-2026-70884

Indicators of Compromise

Unauthenticated SOAP requests to Oracle Hyperion DRM endpoints, particularly from external or non-administrative source addresses.
Unexpected create, modify, or delete operations against DRM hierarchies, versions, or node properties.
Anomalous access to DRM audit logs or bulk data export operations outside of scheduled maintenance windows.

Detection Strategies

Inspect web server and application logs for SOAP calls lacking associated authenticated sessions or valid bearer tokens.
Baseline normal SOAP client identifiers and alert on requests originating from unknown user agents or IP ranges.
Correlate DRM change history events with authenticated user activity to identify orphaned or forged transactions.

Monitoring Recommendations

Forward Hyperion DRM application, IIS, and database audit logs to a centralized analytics platform for correlation.
Monitor egress traffic from the DRM server for signs of bulk data exfiltration following SOAP requests.
Enable and review Oracle DRM audit logging for administrative changes to hierarchies, nodes, and access assignments.

How to Mitigate CVE-2026-70884

Immediate Actions Required

Apply the fixes documented in the Oracle Security Alert August 2026 to all affected Hyperion DRM installations.
Restrict network access to the Hyperion DRM SOAP endpoint using firewalls, reverse proxies, or network segmentation.
Rotate credentials and review DRM administrative accounts for signs of misuse or unauthorized data changes.

Patch Information

Oracle addressed CVE-2026-70884 as part of the August 2026 Critical Patch Update Security Alert. Administrators running Oracle Hyperion Data Relationship Management 11.2.25.0.000 must apply the fixes referenced in the Oracle Security Alert August 2026. Validate patch application in a non-production environment before production rollout.

Workarounds

Place Hyperion DRM behind an authenticating reverse proxy or web application firewall that enforces credentialed access to SOAP paths.
Disable the SOAP interface where business processes do not require it, and remove any external exposure of the service.
Enforce IP allow-listing so that only known integration hosts can reach the DRM SOAP endpoint until patching is complete.

bash

# Configuration example: restrict SOAP endpoint exposure via host-based firewall (Windows)
netsh advfirewall firewall add rule name="Restrict Hyperion DRM SOAP" \
    dir=in action=block protocol=TCP localport=5240
netsh advfirewall firewall add rule name="Allow Hyperion DRM SOAP (Integration Hosts)" \
    dir=in action=allow protocol=TCP localport=5240 remoteip=10.0.0.0/24