Summary
CVE-2026-87176 is a critical, remotely exploitable vulnerability in the Security component of Oracle Hyperion Financial Management. It allows an unauthenticated attacker with network access via TCP to compromise the application and gain unauthorized ability to create, modify, or delete critical data. Oracle rates this issue CRITICAL with a CVSS v3.1 base score of 9.1.
Technical details
- Root cause: A flaw in the Security component of Oracle Hyperion Financial Management that fails to properly enforce authentication/authorization controls before allowing data operations.
- Trigger conditions: The vulnerability is described by Oracle as "easily exploitable," requiring no authentication and no user interaction to trigger.
- Attack vector: Network-based (AV:N) exploitation over TCP; the attacker does not need any level of authenticated access or privileges (PR:N) and no victim interaction is required (UI:N).
- Impact: Successful exploitation results in high impact to confidentiality and integrity — attackers can gain unauthorized access to, and create, modify, or delete, critical or all accessible Hyperion Financial Management data. There is no impact to availability (A:N).
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 Patch Update that addresses this issue for Oracle Hyperion Financial Management 11.2.26.0.000. Refer to Oracle’s official security alert for the corrected release/patch identifier and apply it as soon as possible given the critical severity and lack of required authentication.
- If immediate patching is not possible: Restrict network access to Hyperion Financial Management services to trusted internal networks only, and ensure the application is not directly exposed to the internet. Monitor Hyperion Financial Management logs for anomalous, unauthenticated data-modification or data-deletion activity until the patch can be applied.

