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CVE-2026-87129 – Unauthenticated Data Tampering – Oracle Hyperion Data Relationship Management 11.2.

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Summary

CVE-2026-87129 is a critical vulnerability in the Access and Security component of Oracle Hyperion Data Relationship Management (DRM), affecting version 11.2.26.0.000. The flaw allows an unauthenticated, remote attacker with network access via HTTP to create, delete, or modify critical data and to view confidential information without any prior authentication. Oracle rates this as easily exploitable, and it carries a CVSS v3.1 base score of 9.1 (Critical).

Technical details

  • Root cause: An access control weakness in the Access and Security component of Hyperion DRM allows requests to bypass authentication checks.
  • Trigger conditions: No authentication or user interaction is required; the vulnerability is reachable over the network via HTTP.
  • Attack vector: Network (AV:N), low attack complexity (AC:L), no privileges required (PR:N), no user interaction (UI:N).
  • Impact: High confidentiality impact and high integrity impact — attackers can achieve unauthorized creation, deletion, or modification of critical data and gain access to all data accessible to the application. There is no availability impact (A:N), and the scope is unchanged (S:U).

Affected software

  • Oracle Hyperion Data Relationship Management, version 11.2.26.0.000

Severity

  • CVSS v3.1 Base Score: 9.1 (Critical)
  • Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Mitigation and recommended actions

  • Immediate: Apply the fix provided by Oracle for Hyperion Data Relationship Management as released in the corresponding Oracle Critical Patch Update. Organizations should update to the patched release identified in Oracle’s advisory as soon as it is validated for their environment.
  • If immediate patching is not possible: Restrict network access to the Hyperion DRM Access and Security component/HTTP interface to trusted internal networks only, place the application behind a VPN or access-controlled gateway, and monitor for anomalous unauthenticated requests to DRM endpoints until the patch can be applied.
  • Review Oracle’s Critical Patch Update documentation for any additional prerequisite patches or configuration steps required before applying the fix.

References

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