CVE-2026-70942: Oracle Hyperion Financial Management Flaw

CVE-2026-70942 Overview

CVE-2026-70942 is an information disclosure vulnerability in Oracle Hyperion Financial Management, part of the Oracle Hyperion product family. The flaw resides in the Security component and affects supported version 11.2.25.0.000. A low-privileged attacker with network access via HTTP can exploit the weakness to gain unauthorized access to critical data. The vulnerability carries a scope change, meaning successful exploitation can impact resources beyond the vulnerable component itself. Oracle addressed the issue in the August 2026 Critical Security Patch Update.

Critical Impact
Low-privileged network attackers can obtain complete access to data managed by Oracle Hyperion Financial Management, with impact extending to additional products due to scope change.

Affected Products

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

Discovery Timeline

2026-08-18 - CVE-2026-70942 published to NVD
2026-08-22 - Last updated in NVD database

Technical Details for CVE-2026-70942

Vulnerability Analysis

CVE-2026-70942 is classified as an information exposure weakness [CWE-200] in the Security component of Oracle Hyperion Financial Management. The flaw allows an authenticated attacker holding only low-level privileges to read confidential data managed by the application. Exploitation requires no user interaction and can be executed remotely over HTTP.

The vulnerability carries a scope change, indicating that a successful compromise reaches resources managed outside the vulnerable component's security boundary. This behavior is characteristic of shared authentication or trust relationships between Hyperion Financial Management and other Oracle products in the environment.

Only confidentiality is affected. Integrity and availability of the system remain intact under this attack path, but the exposed financial data may include general ledger balances, consolidation results, and other regulated records.

Root Cause

Oracle has not published low-level technical details. Based on the CWE-200 mapping, the root cause is improper restriction of sensitive information exposure within the Security component. The component fails to correctly enforce access controls on data returned to authenticated users, allowing a low-privileged account to read records outside its authorization scope.

Attack Vector

An attacker requires network reachability to the Hyperion Financial Management HTTP interface and any valid low-privileged account. The attacker submits crafted HTTP requests to the Security component to enumerate or retrieve financial data belonging to other users, entities, or tenants. Because the scope changes on successful exploitation, the retrieved data may include content owned by adjacent Oracle products that share trust with Hyperion Financial Management.

No public proof-of-concept exploit code is available. Refer to the Oracle Security Alert for vendor-supplied technical guidance.

Detection Methods for CVE-2026-70942

Indicators of Compromise

Unusual volumes of HTTP requests from low-privileged Hyperion accounts targeting Security component endpoints.
Authenticated sessions retrieving financial records outside the account's normal entity or scenario scope.
Access log entries showing enumeration patterns against Hyperion Financial Management URIs.

Detection Strategies

Baseline read activity per Hyperion user role and alert on deviations, especially bulk data retrieval by non-administrative accounts.
Correlate HTTP access logs with Hyperion application audit logs to identify cross-entity data access.
Ingest Oracle Hyperion audit events into a centralized analytics platform and apply anomaly detection on privileged data reads.

Monitoring Recommendations

Enable Oracle Hyperion Financial Management audit logging for all Security component operations and data queries.
Forward web server, application, and database logs to a SIEM for correlation and long-term retention.
Monitor authentication events for low-privileged accounts that suddenly access high-value financial records.

How to Mitigate CVE-2026-70942

Immediate Actions Required

Apply the fixes in the Oracle August 2026 Critical Patch Update to all Hyperion Financial Management 11.2.25.0.000 deployments.
Inventory all Hyperion Financial Management instances, including test and disaster recovery environments, to ensure complete patch coverage.
Review and reduce the number of low-privileged accounts with network access to the Hyperion HTTP interface.

Patch Information

Oracle released the fix as part of the August 2026 Critical Security Patch Update. Consult the Oracle Security Alert for the specific patch identifiers, prerequisite versions, and installation instructions for affected Hyperion deployments.

Workarounds

Restrict network access to Hyperion Financial Management HTTP endpoints using firewall rules, VPN gating, or reverse proxy allowlists.
Enforce least-privilege on all Hyperion accounts and remove unused or dormant low-privileged users pending patch deployment.
Increase audit logging verbosity for the Security component and review logs daily until the patch is applied.

bash

# Configuration example: restrict Hyperion HTTP access at the network edge
# Replace 10.0.0.0/24 with the trusted management subnet
iptables -A INPUT -p tcp --dport 443 -s 10.0.0.0/24 -j ACCEPT
iptables -A INPUT -p tcp --dport 443 -j DROP