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CVE-2026-87228 – Unauthenticated Data Disclosure & Modification – Oracle Hyperion Financial Manageme

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Summary

CVE-2026-87228 is a high-severity vulnerability in the Security component of Oracle Hyperion Financial Management (HFM) version 11.2.26.0.000. It allows an unauthenticated, remote attacker with network access via HTTP to gain unauthorized access to sensitive financial data and to modify, insert, or delete a subset of application data. Oracle rates this issue 8.2 (High) on CVSS v3.1, and it was published as part of Oracle’s September 2026 Critical Security Patch Update.

Technical details

  • Root cause: An unspecified flaw in the Security component of Oracle Hyperion Financial Management allows access-control checks to be bypassed, though Oracle has not disclosed the specific code-level defect.
  • Trigger conditions: No authentication or user interaction is required; the vulnerability is remotely exploitable simply by an attacker reaching the affected HTTP interface over the network.
  • Attack vector: Network (AV:N), low attack complexity (AC:L), no privileges required (PR:N), no user interaction (UI:N).
  • Impact: Successful exploitation results in high-confidentiality impact — up to complete disclosure of all data accessible to HFM — combined with low-integrity impact, permitting unauthorized update, insert, or delete operations on some system data. Availability is not affected.

Affected software

  • Oracle Hyperion Financial Management version 11.2.26.0.000

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 Oracle patch for this CVE included in the September 2026 Critical Security Patch Update for Oracle Hyperion Financial Management as soon as possible.
  • If patching cannot be performed immediately: Restrict network access to Oracle Hyperion Financial Management HTTP interfaces to trusted internal networks or VPN-only access, and monitor exposed HFM instances for unusual data access or modification activity until the patch can be applied.

References

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