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CVE-2026-70909 – Unauthenticated Data Exposure / Partial DoS – Oracle Hyperion Financial Management

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Summary

CVE-2026-70909 is a high-severity vulnerability in the Security component of Oracle Hyperion Financial Management, disclosed by Oracle in the August 2026 Critical Security Patch Update. The flaw allows an unauthenticated attacker with network access via HTTP to compromise the application, resulting in unauthorized access to critical data and a partial denial of service. With a CVSS v3.1 base score of 8.2, Oracle rates this an easily exploitable, network-reachable issue requiring no privileges or user interaction.

Technical details

  • Root cause: A weakness in the Security component of Oracle Hyperion Financial Management that fails to properly restrict/authenticate access to protected functionality or data.
  • Trigger conditions: No authentication or user interaction is required; the vulnerability can be triggered simply by sending crafted requests over HTTP to a reachable Hyperion Financial Management instance.
  • Attack vector: Network (AV:N), Low attack complexity (AC:L), no privileges required (PR:N), no user interaction (UI:N).
  • Impact: High confidentiality impact — successful exploitation can grant unauthorized access to sensitive financial data. Low availability impact — exploitation can also cause a partial denial of service. No integrity impact is reported (I:N).
  • Scope: Unchanged (S:U) — the impact is confined to the vulnerable component itself.

Affected software

  • Oracle Hyperion Financial 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:N/A:L

Mitigation and recommended actions

  • Immediate: Apply the fix provided by Oracle in the August 2026 Critical Security Patch Update (CSPU) for Oracle Hyperion Financial Management version 11.2.25.0.000. Oracle strongly recommends applying this update as soon as possible, as historically these vulnerabilities are actively targeted by malicious actors once disclosed.
  • If patching cannot be performed immediately:
    • Restrict network exposure of Hyperion Financial Management HTTP interfaces to trusted internal networks only; avoid exposing the application directly to the internet.
    • Deploy compensating network controls (firewall rules, WAF, or VPN-only access) in front of the affected service until the patch is applied.
    • Monitor access logs for anomalous, unauthenticated requests to the Security component of Hyperion Financial Management.

References

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