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CVE-2026-70743 – Unauthenticated Data Exposure & Partial DoS – Oracle Hyperion Financial Reporting 1

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Summary

CVE-2026-70743 is a high-severity vulnerability in Oracle Hyperion Financial Reporting that allows an unauthenticated, remote attacker with network access via HTTPS to gain unauthorized access to critical data and cause a partial denial of service. Oracle describes the flaw as "easily exploitable," requiring no privileges and no user interaction, which makes it attractive to opportunistic and automated attackers scanning for internet-exposed Hyperion instances. The vulnerability was published by Oracle in its August 2026 security advisory with a CVSS v3.1 base score of 8.2 (High).

Technical details

  • Root cause: A flaw in a server-side component of Oracle Hyperion Financial Reporting that fails to properly enforce authentication/authorization before processing certain requests, per Oracle’s official description.
  • Attack vector: Network-based, delivered over HTTPS — no local access, adjacent network position, or special network configuration is required.
  • Trigger conditions: Attack complexity is low (AC:L) and requires no privileges (PR:N) and no user interaction (UI:N), meaning the vulnerability can be triggered directly against an exposed Hyperion Financial Reporting endpoint.
  • Impact: Successful exploitation results in high-impact unauthorized access to confidential data (C:H) and a limited/partial denial-of-service condition (A:L). Integrity is not affected (I:N), and the vulnerability does not change the security scope (S:U).

Affected software

  • Oracle Hyperion Financial Reporting, 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) advisory for Oracle Hyperion Financial Reporting 11.2.25.0.000. Organizations should identify all deployed Hyperion Financial Reporting instances and confirm the relevant patch has been applied.
  • If immediate patching is not possible: Restrict network exposure of Hyperion Financial Reporting — do not expose the application directly to the internet; place it behind a VPN, reverse proxy, or restrict access via firewall/network ACLs to trusted management networks only, and monitor HTTPS access logs for anomalous or unauthenticated requests to the affected service until the patch can be applied.
  • As with all Oracle Critical Patch Update / Critical Security Patch Update vulnerabilities, Oracle strongly recommends applying the fixes as soon as possible, since these advisories address flaws that are actively tracked and may be targeted shortly after disclosure.

References

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