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CVE-2026-87217 – Unauthenticated Data Compromise (RCE-level Impact) – Oracle Hyperion Financial Mana

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Summary

CVE-2026-87217 is a critical vulnerability in the Security component of Oracle Hyperion Financial Management that allows a completely unauthenticated, network-based attacker to compromise the application over HTTP. Successful exploitation can result in unauthorized creation, deletion, modification, and disclosure of data managed by the application. Oracle rates this vulnerability as CVSS v3.1 base score 9.1 (Critical), and it was disclosed as part of Oracle’s September 2026 Critical Security Patch Update.

Technical details

  • Root cause: The flaw resides in the Security component of Oracle Hyperion Financial Management; Oracle’s advisory describes it as "easily exploitable."
  • Trigger conditions: No authentication or user interaction is required; the vulnerability is reachable over the network via HTTP, meaning any attacker with network access to the vulnerable HTTP interface can attempt exploitation.
  • Attack vector: Network (AV:N), Low attack complexity (AC:L), no privileges required (PR:N), no user interaction (UI:N), scope unchanged (S:U).
  • Impact: High confidentiality impact and high integrity impact (C:H/I:H) — attackers can read, create, modify, or delete data accessible to the application. No availability impact is indicated (A:N), so the vulnerability does not directly cause denial of service.

Affected software

  • Oracle Hyperion Financial 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 Oracle Critical Security Patch Update released September 2026 (cspusep2026), which addresses CVE-2026-87217 for Oracle Hyperion Financial Management. Organizations should confirm with Oracle support the exact patched release/version to upgrade to for their environment.
  • If immediate patching is not possible:
    • Restrict network access to Oracle Hyperion Financial Management HTTP interfaces to trusted internal networks only; do not expose the application directly to the internet.
    • Use a web application firewall or network access controls to limit inbound HTTP traffic to the affected component from untrusted sources.
    • Monitor Hyperion Financial Management access and audit logs for anomalous, unauthenticated requests to the Security component.
    • Prioritize patch deployment given the unauthenticated, network-exploitable nature of this vulnerability and its critical severity rating.

References

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