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CVE-2026-70897 – Unauthenticated Data Exposure and Modification – Oracle Hyperion Data Relationship

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Summary

CVE-2026-70897 is a high-severity vulnerability in Oracle Hyperion Data Relationship Management (HDRM) that allows an unauthenticated, remote attacker with network access via HTTPS to compromise the application. Oracle rates the flaw 8.2 (HIGH) on CVSS v3.1, describing it as "easily exploitable" and noting that successful exploitation results in unauthorized access to critical data (high confidentiality impact) as well as unauthorized modification of some accessible data (low integrity impact). The issue affects the Access and security component of Oracle Hyperion Data Relationship Management.

Technical details

  • Root cause: A flaw in the Access and security component of Oracle Hyperion Data Relationship Management that fails to properly enforce authentication/authorization controls, as characterized in Oracle’s own advisory data.
  • Trigger conditions: No authentication or user interaction is required to trigger the vulnerability; the attacker only needs network access to the application over HTTPS.
  • Attack vector: Network (AV:N), Low attack complexity (AC:L), no privileges required (PR:N), no user interaction (UI:N).
  • Impact: High confidentiality impact — attackers can gain unauthorized access to all data accessible by the affected component — plus a low integrity impact, allowing unauthorized modification of some accessible data. There is no impact on availability.

Affected software

  • Oracle Hyperion Data Relationship Management, version 11.2.25.0.000

Severity

  • CVSS v3.1 Base Score: 8.2 (HIGH)
  • Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N

Mitigation and recommended actions

  • Immediate: Apply the fix provided in Oracle’s August 2026 Critical Patch Update (CPU) for Oracle Hyperion Data Relationship Management 11.2.25.0.000. Oracle strongly recommends applying CPU security patches as soon as possible, as attacks are often crafted against known vulnerabilities once an advisory is released.
  • If immediate patching is not possible: Restrict network access to the Hyperion Data Relationship Management application to trusted internal networks and VPNs only, and avoid exposing the HTTPS management/application interface directly to the internet until the patch has been applied. Monitor access logs for unusual, unauthenticated requests to the application.

References

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