CVE-2026-70883 Overview
CVE-2026-70883 is a critical vulnerability in the Oracle Hyperion Data Relationship Management product, within the Access and security component. The affected version is 11.2.25.0.000. An unauthenticated attacker with network access via HTTP can compromise the application without user interaction. Successful exploitation grants unauthorized creation, deletion, or modification access to critical data, along with unauthorized read access to all data accessible through Oracle Hyperion Data Relationship Management.
Critical Impact
Remote, unauthenticated attackers can read and modify all data accessible to Oracle Hyperion Data Relationship Management over HTTP.
Affected Products
- Oracle Hyperion Data Relationship Management 11.2.25.0.000
- Oracle Hyperion product family (Access and security component)
- Deployments exposing the Data Relationship Management HTTP interface
Discovery Timeline
- 2026-08-18 - CVE-2026-70883 published to NVD
- 2026-08-20 - Last updated in NVD database
Technical Details for CVE-2026-70883
Vulnerability Analysis
The flaw resides in the Access and security component of Oracle Hyperion Data Relationship Management. The component fails to enforce authentication and authorization on HTTP-accessible functionality. As a result, remote attackers can invoke privileged operations without valid credentials. The impact covers both confidentiality and integrity of managed data, while availability is not affected. Oracle classifies exploitation as easy, meaning no specialized conditions or elevated attacker positioning are required.
Root Cause
The root cause is a broken access control defect in the HTTP-facing interface of Data Relationship Management version 11.2.25.0.000. Requests that should require authenticated, authorized sessions are processed without validating the caller's identity or privileges. This allows anonymous callers to reach data and management functions intended for privileged administrators.
Attack Vector
Exploitation occurs over the network using HTTP. The attacker sends crafted requests to the exposed Data Relationship Management endpoint. No credentials, prior access, or user interaction are required. Once a request is accepted, the attacker can read, create, modify, or delete records governed by the application, including hierarchies and master data used for financial consolidation and reporting.
No public proof-of-concept code has been verified for CVE-2026-70883. Refer to the Oracle Security Alert for authoritative technical details.
Detection Methods for CVE-2026-70883
Indicators of Compromise
- Unauthenticated HTTP requests to Data Relationship Management endpoints that return successful responses for administrative or data-modifying operations.
- Unexpected creation, deletion, or modification of hierarchy nodes, properties, or master data records in Data Relationship Management audit logs.
- Outbound HTTP responses containing large exports of hierarchy or dimension data to unfamiliar client addresses.
Detection Strategies
- Inspect web server and application logs for HTTP requests to Data Relationship Management URLs that lack an authenticated session identifier or valid authorization header.
- Correlate application audit events for create, update, and delete actions with the originating session and source IP to identify anonymous or anomalous callers.
- Alert on spikes in read volume against Data Relationship Management APIs, particularly from IP ranges outside the finance user population.
Monitoring Recommendations
- Forward Oracle Hyperion application logs, IIS or web tier logs, and network flow data to a centralized analytics platform for correlation.
- Enable Data Relationship Management audit logging for all data changes and administrative operations, and retain logs for post-incident review.
- Monitor for new or modified administrative users, API tokens, or integration accounts created after the CVE publication date.
How to Mitigate CVE-2026-70883
Immediate Actions Required
- Apply the fixes referenced in the Oracle Security Alert for Oracle Hyperion Data Relationship Management version 11.2.25.0.000.
- Restrict network access to the Data Relationship Management HTTP interface so that only trusted management networks can reach it.
- Review audit logs and change history for unauthorized data modifications since the CVE publication date of 2026-08-18.
- Rotate credentials, API keys, and integration secrets stored or referenced by Data Relationship Management.
Patch Information
Oracle addresses CVE-2026-70883 through the August 2026 security update cycle. Administrators should consult the Oracle Security Alert for the specific patch bundle applicable to Oracle Hyperion Data Relationship Management 11.2.25.0.000 and follow Oracle's documented deployment procedure in a test environment before production rollout.
Workarounds
- Place the Data Relationship Management HTTP endpoint behind a reverse proxy or web application firewall that enforces authentication before requests reach the application.
- Use network segmentation and firewall rules to allow only authorized administrative workstations and integration servers to connect to the application tier.
- Disable or block any unused HTTP endpoints and integration interfaces exposed by Data Relationship Management until the patch is applied.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
