CVE-2026-70892: Oracle Hyperion DRM Auth Bypass Flaw

CVE-2026-70892 Overview

CVE-2026-70892 affects the Access and security component of Oracle Hyperion Data Relationship Management (DRM). The flaw allows a low-privileged attacker with network access over HTTP to compromise the application. Successful exploitation results in unauthorized creation, deletion, or modification of critical data, along with unauthorized read access to all DRM-accessible data. The vulnerability carries a scope change, meaning attacks may significantly impact additional products beyond DRM itself. Oracle documented the issue in its August 2026 Critical Patch Update Special release. The weakness is classified under [CWE-284: Improper Access Control].

Critical Impact
Authenticated attackers can gain complete read and write access to all Oracle Hyperion Data Relationship Management data, with impact extending to additional connected products through scope change.

Affected Products

Oracle Hyperion Data Relationship Management version 11.2.25.0.000
Oracle Hyperion product family (Access and security component)
Downstream products connected to DRM (via scope change)

Discovery Timeline

2026-08-18 - CVE-2026-70892 published to NVD
2026-08-22 - Last updated in NVD database

Technical Details for CVE-2026-70892

Vulnerability Analysis

CVE-2026-70892 is a Broken Access Control weakness in the Access and security component of Oracle Hyperion Data Relationship Management. The component fails to correctly enforce authorization checks on privileged operations exposed over HTTP. An authenticated user with limited privileges can invoke functionality reserved for higher-privileged roles. The scope change indicator confirms that the security boundary between DRM and dependent components is crossed during exploitation. Attackers can read, modify, create, or delete records within any dataset that DRM can reach, including metadata used by connected Enterprise Performance Management (EPM) applications.

Root Cause

The root cause is improper access control [CWE-284] within the authorization logic of the Access and security component. The component does not validate whether the calling principal is entitled to perform the requested action on the target resource. Because DRM operates as a master data management hub, authorization gaps propagate integrity impact to downstream systems that consume its data.

Attack Vector

The attack vector is network-based over HTTP. The attacker must hold a valid low-privileged DRM account. The high attack complexity indicates that specific conditions, such as timing, resource state, or configuration, must be satisfied for exploitation to succeed. User interaction is not required. Once exploited, the attacker gains confidentiality and integrity impact across DRM data and connected components. Availability is not affected.

No public exploit code has been observed for CVE-2026-70892. Refer to the Oracle Security Alert CSPUAUG2026 for vendor technical details.

Detection Methods for CVE-2026-70892

Indicators of Compromise

Unexpected create, update, or delete operations in DRM audit logs performed by low-privileged accounts
HTTP requests from authenticated users to DRM administrative or security endpoints outside their normal role scope
Changes to hierarchies, versions, or property definitions that lack a corresponding change-management ticket
Anomalous data-export activity from DRM to connected Hyperion or EPM applications

Detection Strategies

Correlate DRM application logs with identity provider logs to identify privilege mismatches between session role and action performed
Baseline normal API and web request patterns per user role and alert on deviations targeting security or metadata endpoints
Monitor downstream Hyperion, Essbase, and HFM systems for unexpected metadata changes originating from DRM

Monitoring Recommendations

Enable verbose auditing on the DRM Access and security component and forward logs to a centralized SIEM
Track HTTP 200 responses to sensitive DRM endpoints invoked by accounts without administrative entitlements
Alert on repeated failed authorization attempts followed by successful actions from the same session

How to Mitigate CVE-2026-70892

Immediate Actions Required

Apply the fixes published in the Oracle Security Alert CSPUAUG2026 to Oracle Hyperion DRM 11.2.25.0.000
Review all DRM user accounts and remove unnecessary privileges to reduce the pool of accounts capable of authenticating for exploitation
Audit recent DRM activity for unauthorized changes performed by low-privileged accounts since the vulnerable version was deployed

Patch Information

Oracle addressed CVE-2026-70892 in the August 2026 Critical Patch Update Special release. Administrators should download the patch bundle from My Oracle Support and apply it to all DRM instances running 11.2.25.0.000. Vendor guidance is documented in the Oracle Security Alert CSPUAUG2026.

Workarounds

Restrict network access to the DRM web tier so only trusted internal networks and jump hosts can reach HTTP endpoints
Enforce multi-factor authentication on all DRM accounts to raise the cost of credential compromise
Place a web application firewall in front of DRM and block direct access to administrative and security-component URIs from non-administrative user sessions

bash

# Configuration example: restrict DRM web tier access at the network edge
# Replace <drm_host>, <admin_subnet>, and <drm_port> with environment values
iptables -A INPUT -p tcp --dport <drm_port> -s <admin_subnet> -j ACCEPT
iptables -A INPUT -p tcp --dport <drm_port> -j DROP