Summary
CVE-2026-70900 is a high-severity vulnerability in the Access and Security component of Oracle Hyperion Data Relationship Management (DRM). The flaw allows an unauthenticated, network-based attacker (over HTTP) to gain unauthorized creation, deletion, or modification access to critical data, as well as unauthorized read access to data across the affected product. Oracle rates the issue with a CVSS v3.1 base score of 8.7 (High) and disclosed it as part of its August 2026 Critical Security Patch Update.
Technical details
- Root cause: A weakness in Hyperion DRM’s Access and Security component that fails to properly enforce authentication/authorization controls, per Oracle’s advisory language.
- Trigger conditions: Oracle describes the flaw as "difficult to exploit," implying non-trivial preconditions or a specific sequence of network interactions are required, but no user interaction and no privileges are needed by the attacker.
- Attack vector: Remote, over HTTP (Network attack vector, CVSS AV:N), with no authentication (PR:N) and no user interaction (UI:N) required.
- Impact: Successful exploitation can result in unauthorized creation, deletion, or modification of critical data (Integrity: High) and unauthorized access to all data accessible to the Hyperion DRM application (Confidentiality: High). The CVSS Scope is rated "Changed" (S:C), indicating the vulnerability can impact resources beyond the vulnerable component itself. Availability is not impacted (A:N).
Affected software
- Oracle Hyperion Data Relationship Management, version 11.2.25.0.000 (as listed in Oracle’s published risk matrix for this CVE)
Severity
- CVSS v3.1 Base Score: 8.7 (High)
- Vector:
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N
Mitigation and recommended actions
- Immediate: Apply the fixes provided in Oracle’s August 2026 Critical Security Patch Update (CSPU) advisory for Oracle Hyperion Data Relationship Management. Oracle Critical Security Patch Updates are cumulative for the affected component, so applying the latest available patch set brings the installation current for this and related fixes.
- If immediate patching is not possible:
- Restrict network access to Hyperion DRM Access and Security endpoints to trusted internal networks only; do not expose the interface directly to the internet.
- Place the application behind a properly configured web application firewall (WAF) or reverse proxy to monitor and restrict anomalous requests to the affected component.
- Review access and audit logs for unauthorized data creation, deletion, or modification activity as an interim detective control until the patch is applied.
- Since Oracle rates this as "difficult to exploit," prioritize patching alongside other higher-exploitability items in the same update cycle, but do not delay remediation given the network-reachable, unauthenticated nature of the flaw.

