CVE-2026-87230 is a critical security vulnerability in Oracle Hyperion Financial Management (version 11.2.26.0.000) that allows remote unauthenticated attackers to compromise the product via HTTP. Successful exploitation can lead to unauthorized creation, deletion, or modification of critical data, with a scope change potentially affecting other Oracle Hyperion products. The vulnerability has a CVSS 3.1 score of 10.0 (AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N), indicating network attack vector, low complexity, no privileges or user interaction required, with high confidentiality and integrity impacts. Oracle has addressed this vulnerability in its September 2026 Critical Security Patch Update.

Exploitation of this vulnerability can result in unauthorized creation, deletion, or modification of critical data within Oracle Hyperion Financial Management, as well as unauthorized access to all accessible data. The vulnerability's scope change means it may also impact additional Oracle Hyperion products. The CVSS score of 10.0 reflects critical confidentiality and integrity impacts, but no impact on availability.

Oracle has released a Critical Security Patch Update in September 2026 that includes a fix for this vulnerability. Customers are strongly advised to apply the available security patches promptly to mitigate the risk. Oracle recommends remaining on actively-supported versions and applying security patches without delay. Patch status is confirmed as fixed in the September 2026 Critical Security Patch Update. No additional mitigation steps are indicated beyond applying the official patch.