CVE-2026-70975: Oracle Hyperion Financial Management Flaw

CVE-2026-70975 Overview

CVE-2026-70975 is an information disclosure vulnerability in the Security component of Oracle Hyperion Financial Management. The affected release is version 11.2.25.0.000. A low-privileged attacker with network access via HTTP can exploit the flaw to gain unauthorized read access to sensitive application data.

Oracle rates the issue as easily exploitable. Successful exploitation can result in unauthorized access to critical data or complete access to all data accessible to Oracle Hyperion Financial Management. The vulnerability is categorized under [CWE-200: Exposure of Sensitive Information to an Unauthorized Actor].

Critical Impact
Authenticated attackers with low privileges can read all data accessible to Oracle Hyperion Financial Management over the network, exposing financial and consolidation records.

Affected Products

Oracle Hyperion Financial Management 11.2.25.0.000
Component: Security
Product family: Oracle Hyperion

Discovery Timeline

2026-08-18 - CVE-2026-70975 published to NVD
2026-08-22 - Last updated in NVD database

Technical Details for CVE-2026-70975

Vulnerability Analysis

The vulnerability resides in the Security component of Oracle Hyperion Financial Management, a consolidation and reporting application used by finance teams. Oracle's advisory categorizes the flaw as an information disclosure issue that impacts only confidentiality. Integrity and availability are unaffected.

An attacker authenticated with a low-privilege account can send crafted HTTP requests to the application. These requests bypass access controls in the Security component and return data the account is not authorized to view. Oracle indicates the scope of exposure ranges from unauthorized access to critical data up to complete access to all data reachable by the Hyperion Financial Management deployment.

Root Cause

The underlying weakness maps to [CWE-200], where the application discloses information to actors that should not have access. The Security component fails to enforce authorization consistently for network-facing HTTP endpoints. Because privilege requirements are low, any authenticated user of the Hyperion environment becomes a potential source of exploitation.

Attack Vector

The attack vector is Network and complexity is Low. The attacker requires low privileges and no user interaction. Exploitation involves issuing HTTP requests to the Hyperion Financial Management server from a session that already holds a valid low-privilege login. No public proof-of-concept, exploit code, or CISA KEV listing is currently associated with this CVE.

No verified exploitation code is available. Refer to the Oracle Security Advisory for authoritative technical detail.

Detection Methods for CVE-2026-70975

Indicators of Compromise

Repeated HTTP requests from a single low-privileged Hyperion account targeting Security component endpoints or data-access URLs.
Unexpected retrieval of consolidation, entity, or account data by users whose role does not require that scope.
Anomalous session activity such as high request volume or off-hours access from finance user accounts.

Detection Strategies

Enable HFM audit logging for data-access and metadata-read operations, then baseline normal access patterns per role.
Correlate web server access logs with application audit logs to identify authenticated users retrieving data outside their assigned entities.
Alert on divergence between a user's provisioned security class and the data actually returned in HTTP responses.

Monitoring Recommendations

Forward Oracle Hyperion application logs, IIS or HTTP server logs, and authentication events into a centralized SIEM for correlation.
Track per-user query volume and data-object counts to surface enumeration behavior.
Review privileged and service-account activity daily until the environment is patched.

How to Mitigate CVE-2026-70975

Immediate Actions Required

Apply the fixes referenced in the Oracle Critical Patch Update for August 2026 to Oracle Hyperion Financial Management 11.2.25.0.000.
Inventory all Hyperion Financial Management deployments and confirm version and patch level.
Restrict network reachability of the Hyperion HTTP endpoints to trusted management and finance network segments only.
Review and tighten role assignments so users hold only the minimum Hyperion security classes required.

Patch Information

Oracle addresses this vulnerability in the August 2026 Critical Patch Update. Administrators should install the corresponding Hyperion Financial Management patch as documented in the Oracle Security Advisory. Oracle does not typically provide code-level mitigations outside the patch, so timely deployment of the CPU is the primary remediation.

Workarounds

Place Hyperion Financial Management behind a reverse proxy or web application firewall that enforces authentication scope and blocks unexpected request patterns.
Disable or disconnect unused Hyperion accounts, especially low-privileged accounts that are dormant.
Enforce network segmentation and VPN-only access to the Hyperion web tier until the CPU patch is applied.

bash

# Verify installed Hyperion Financial Management version before and after patching
# (run from the EPM instance host)
cd $EPM_ORACLE_INSTANCE/bin
./epmsys_registry.sh view SYSTEM9/FINANCIAL_MANAGEMENT_PRODUCT | grep -i version