CVE-2026-70880: Oracle Hyperion DRM Auth Bypass Vulnerability

CVE-2026-70880 Overview

CVE-2026-70880 is a critical vulnerability in the Oracle Hyperion Data Relationship Management product, part of the Oracle Hyperion suite. The flaw resides in the Access and security component of version 11.2.25.0.000. An unauthenticated remote attacker with network access via TCP can exploit this issue to fully compromise Oracle Hyperion Data Relationship Management. The vulnerability produces a scope change, meaning successful attacks can affect additional products beyond the vulnerable component. Oracle disclosed the issue in the Oracle Security Alert August 2026.

Critical Impact
Unauthenticated network attackers can take over Oracle Hyperion Data Relationship Management and impact additional products through scope change, with full confidentiality, integrity, and availability loss.

Affected Products

Oracle Hyperion Data Relationship Management 11.2.25.0.000
Oracle Hyperion (Access and security component)
Downstream products affected by scope change per Oracle's advisory

Discovery Timeline

2026-08-18 - CVE-2026-70880 published to NVD
2026-08-18 - Oracle Security Alert August 2026 released addressing the issue
2026-08-20 - Last updated in NVD database

Technical Details for CVE-2026-70880

Vulnerability Analysis

CVE-2026-70880 affects the Access and security component of Oracle Hyperion Data Relationship Management. The component enforces authentication and authorization boundaries within the application. A flaw in this layer allows unauthenticated attackers to bypass those controls entirely over the network. Successful exploitation results in complete takeover of the Data Relationship Management instance.

The vulnerability carries a scope change designation. An attacker who compromises Data Relationship Management can pivot to impact additional Oracle Hyperion components that trust the vulnerable service. This expands the blast radius beyond the initial target, threatening financial data models, master data hierarchies, and integrated reporting systems.

Exploitation does not require user interaction or prior credentials. Attack complexity is low, and the network attack vector allows exploitation from any host that can reach the Hyperion TCP service. The EPSS score is 0.358% as of 2026-08-23, indicating limited public exploitation activity at this time.

Root Cause

Oracle's advisory attributes the flaw to the Access and security component of Oracle Hyperion Data Relationship Management version 11.2.25.0.000. Oracle has not published a detailed root-cause analysis. The impact profile is consistent with an authentication or authorization control failure that permits unauthenticated command execution or privileged operations against the service.

Attack Vector

An attacker sends crafted requests over TCP to a network-reachable Hyperion Data Relationship Management endpoint. No credentials, tokens, or user interaction are required. Once the access controls are bypassed, the attacker executes privileged operations that lead to full takeover and lateral impact on connected Hyperion products.

No verified public proof-of-concept code is available. Technical details are described in prose only; refer to the Oracle Security Alert August 2026 for vendor-supplied information.

Detection Methods for CVE-2026-70880

Indicators of Compromise

Unauthenticated HTTP or TCP requests to Hyperion Data Relationship Management endpoints from unexpected source addresses
New or unexpected administrative accounts, roles, or permission changes within Data Relationship Management
Modifications to master data hierarchies, mappings, or export jobs outside change-control windows
Outbound connections from Hyperion application servers to unknown external hosts

Detection Strategies

Review Hyperion Data Relationship Management audit logs for authentication bypass patterns and privileged actions with no preceding login
Correlate web server, application server, and database logs to identify request chains that skip authentication steps
Baseline normal API and console usage, then alert on deviations in request volume, source IP, or endpoint targeting

Monitoring Recommendations

Forward Hyperion application, IIS or web tier, and OS logs to a centralized SIEM for correlation
Monitor egress traffic from Hyperion servers for command-and-control indicators
Alert on service restarts, configuration file changes, and new scheduled tasks on Hyperion hosts

How to Mitigate CVE-2026-70880

Immediate Actions Required

Apply the fixes referenced in the Oracle Security Alert August 2026 to all Oracle Hyperion Data Relationship Management 11.2.25.0.000 deployments
Restrict network access to Hyperion Data Relationship Management TCP services to trusted management networks only
Audit administrative accounts, roles, and recent hierarchy or metadata changes for unauthorized activity
Rotate credentials and service account secrets used by Hyperion integrations after patching

Patch Information

Oracle addressed CVE-2026-70880 in the Oracle Security Alert Advisory dated August 2026. Administrators should download and apply the patches specified for Oracle Hyperion Data Relationship Management from the Oracle Security Alert August 2026. Oracle Security Alerts are issued outside the normal Critical Patch Update cycle and should be treated as high priority.

Workarounds

Place Hyperion Data Relationship Management behind a reverse proxy or web application firewall that enforces authentication and rate limits until patches are deployed
Block Hyperion Data Relationship Management TCP ports at perimeter and internal firewalls from untrusted network segments
Disable or firewall off exposed management endpoints that are not required for business operations
Increase logging verbosity on the Access and security component to support incident response if compromise is suspected

bash

# Example: restrict inbound access to Hyperion DRM service using iptables
# Replace <DRM_PORT> and <ADMIN_SUBNET> with your 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