CVE-2026-70874: Oracle Hyperion DRM Auth Bypass Vulnerability

CVE-2026-70874 Overview

CVE-2026-70874 is a high-severity vulnerability in the Oracle Hyperion Data Relationship Management product, part of the Oracle Hyperion suite. The flaw resides in the Access and security component and affects supported version 11.2.25.0.000. A low-privileged attacker with network access over HTTP can exploit this weakness to fully compromise the affected instance. Successful exploitation results in complete takeover, impacting confidentiality, integrity, and availability. Oracle disclosed the issue in the Oracle Security Alert August 2026.

Critical Impact
Authenticated attackers with low privileges can take over Oracle Hyperion Data Relationship Management deployments over HTTP, compromising master data governance and financial reporting integrity.

Affected Products

Oracle Hyperion Data Relationship Management 11.2.25.0.000
Oracle Hyperion suite (Access and security component)
Deployments exposing the Data Relationship Management HTTP interface to networked clients

Discovery Timeline

2026-08-18 - CVE-2026-70874 published to the National Vulnerability Database (NVD)
2026-08-18 - Oracle publishes the Oracle Security Alert August 2026 addressing the issue
2026-08-20 - Last updated in the NVD database

Technical Details for CVE-2026-70874

Vulnerability Analysis

Oracle Hyperion Data Relationship Management (DRM) provides enterprise master data governance for financial and analytical hierarchies. The flaw exists in the Access and security component, which enforces authentication and authorization boundaries within the application.

According to Oracle's advisory, the vulnerability is easily exploitable and requires only low privileges. An authenticated attacker sending crafted HTTP requests to the DRM service can escalate access and compromise the application. Because the scope remains unchanged and the impact spans confidentiality, integrity, and availability, exploitation leads to full application takeover.

Successful attacks allow adversaries to modify master data hierarchies, exfiltrate governed financial metadata, and disrupt downstream Enterprise Performance Management (EPM) reporting workflows.

Root Cause

Oracle has not publicly documented the specific defect class. The issue is scoped to the Access and security component, indicating a flaw in how the application enforces access checks or validates authenticated user actions. No CWE identifier has been assigned in the NVD record at time of publication.

Attack Vector

The attack originates from the network over HTTP. The attacker must hold a valid, low-privileged account on the target DRM instance. No user interaction is required, and attack complexity is low. Environments that expose DRM to broad internal networks or to the internet significantly increase exposure. Refer to the Oracle Security Alert August 2026 for authoritative details.

Detection Methods for CVE-2026-70874

Indicators of Compromise

Unexpected privilege changes, role assignments, or administrative actions performed by low-privileged DRM accounts
Anomalous HTTP requests to Hyperion DRM endpoints originating from unusual internal hosts or geographies
Modifications to master data hierarchies, node properties, or security classes outside approved change windows
New or altered DRM sessions authenticated from accounts that do not typically access the platform

Detection Strategies

Enable and review Hyperion DRM audit logs for administrative operations invoked by non-administrative principals
Correlate authentication events, HTTP access logs, and DRM change history in a centralized analytics platform
Baseline normal HTTP request patterns to the DRM application and alert on deviations in volume, method, or URI
Track EPSS trending for CVE-2026-70874 (currently 0.328%) to gauge shifts in exploitation likelihood

Monitoring Recommendations

Forward Hyperion DRM application, web server, and operating system logs to a SIEM for continuous analysis
Alert on privilege escalation patterns such as sudden grants of administrator, data manager, or workflow user roles
Monitor network flows to DRM hosts and flag connections from workstations that do not require DRM access
Review scheduled batch jobs and integration accounts for unauthorized modifications to security configuration

How to Mitigate CVE-2026-70874

Immediate Actions Required

Apply the patches from the Oracle Security Alert August 2026 to all affected Hyperion DRM 11.2.25.0.000 deployments
Inventory DRM instances, including non-production environments, and prioritize internet-exposed or widely accessible systems
Rotate credentials for DRM service, integration, and administrative accounts after patching
Audit recent DRM administrative activity, role changes, and hierarchy modifications for signs of abuse

Patch Information

Oracle addressed CVE-2026-70874 in the Oracle Security Alert August 2026 (cspuaug2026). Administrators should apply the vendor-supplied Critical Patch Update for Oracle Hyperion Data Relationship Management version 11.2.25.0.000. Refer to the Oracle Security Alert August 2026 for downloads, prerequisites, and application instructions.

Workarounds

Restrict network access to the DRM HTTP interface using firewall rules or reverse proxy allow-lists limited to authorized administrators and integration hosts
Enforce least privilege on DRM accounts and remove standing access from users who do not require it
Require multi-factor authentication on the identity provider fronting Hyperion DRM to raise the barrier for credential misuse
Increase audit log retention and review cadence until patches are validated in production

bash

# Example: restrict inbound access to the Hyperion DRM web tier to trusted subnets
# Replace 10.0.0.0/24 with the approved administrator or integration subnet
iptables -A INPUT -p tcp --dport 443 -s 10.0.0.0/24 -j ACCEPT
iptables -A INPUT -p tcp --dport 443 -j DROP