This vulnerability affects Oracle Hyperion Financial Management version 11.2.26.0.000 and allows a high privileged attacker with network access via HTTP to compromise the system. The vulnerability impacts confidentiality and availability, potentially allowing unauthorized access to critical data and causing partial denial of service. The vulnerability is part of a broader set of security issues addressed in Oracle's September 2026 Critical Security Patch Update, which includes 673 new security patches across multiple Oracle products. Oracle recommends applying these patches without delay to prevent exploitation.

Exploitation of this vulnerability can result in unauthorized access to critical data or complete access to all data accessible by Oracle Hyperion Financial Management. Additionally, it can cause a partial denial of service, impacting availability. The vulnerability affects confidentiality and availability but does not impact integrity. The CVSS 3.1 base score of 7.6 reflects a high severity level with network attack vector, low attack complexity, and requiring high privileges.

Oracle has released a Critical Security Patch Update in September 2026 that addresses this vulnerability among others. Customers should apply the relevant patches from this update promptly to remediate the vulnerability. Oracle strongly recommends remaining on actively supported versions and applying security patches without delay. No alternative mitigations or workarounds are specified in the advisory.