Hyperion DRM EUVD-2026-61849

Network access via HTTP to the Oracle Hyperion Data Relationship Management server is required. No authentication is required per the CVSS PR:N rating, meaning the attacker needs no valid credentials for the application. However, attack complexity is rated High (AC:H), indicating that exploitation is not trivial and depends on specific conditions being present - the exact prerequisite (race condition, precise server state, timing constraint, or environmental factor) is not disclosed in the Oracle August 2026 CPU advisory. The vulnerability is confined to the Access and Security component of version 11.2.25.0.000. Exploitation is constrained by the AC:H requirement, the necessity of direct HTTP network reachability to the DRM server, and the absence of any Availability impact, which suggests the exploitation path does not involve resource exhaustion or denial-of-service techniques.

The CVSS 3.1 vector (AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N) presents a nuanced picture: network-reachable with no authentication required are serious red flags, but the High attack complexity (AC:H) indicates that exploitation depends on specific conditions - such as a race condition, timing window, or precise system state - reducing the likelihood of automated mass exploitation. No EPSS score was provided in the source data, and no CISA KEV listing exists at time of analysis, suggesting this has not yet been observed in widespread active use. That said, the scope change to additional Oracle Hyperion components significantly elevates real-world impact, and even a mid-sized municipal IT team in opole managing Oracle EPM infrastructure for financial reporting should treat this as urgent given the potential for cross-component compromise of critical master data. The absence of a published CWE and limited advisory technical detail leave the precise exploitation mechanism unconfirmed, introducing meaningful uncertainty when assessing true exploitation difficulty.

An unauthenticated attacker with HTTP network access to the Oracle Hyperion DRM interface sends a specially crafted HTTP request that exploits the authentication bypass in the Access and Security component, satisfying the AC:H precondition - likely a specific server state or timing window - to gain full read and write access to critical DRM master data hierarchies. No public proof-of-concept exploit code has been identified at time of analysis. Once inside, the attacker can manipulate financial metadata hierarchies or pivot laterally to additional Oracle Hyperion EPM components that consume DRM data, amplifying the scope of impact beyond the initial target.