CVE-2026-70974: Oracle Hyperion Financial Management Info Leak

CVE-2026-70974 Overview

CVE-2026-70974 is an information disclosure vulnerability in the Security component of Oracle Hyperion Financial Management. The flaw affects version 11.2.25.0.000. An authenticated attacker with low privileges and network access via HTTP can exploit this weakness to gain unauthorized access to sensitive data managed by the application.

Oracle addressed the issue in the Oracle Security Alert August 2026. The vulnerability is classified under [CWE-200] (Exposure of Sensitive Information to an Unauthorized Actor). Exploitation is described as difficult but can result in complete access to all data accessible through Oracle Hyperion Financial Management.

Critical Impact
Successful exploitation grants an authenticated attacker unauthorized read access to critical financial consolidation and reporting data managed by Oracle Hyperion Financial Management.

Affected Products

Oracle Hyperion Financial Management version 11.2.25.0.000
Oracle Hyperion product family (Security component)
Deployments exposing the Hyperion HTTP interface to authenticated users

Discovery Timeline

2026-08-18 - CVE-2026-70974 published to the National Vulnerability Database
2026-08-18 - Oracle Security Alert August 2026 released with remediation guidance
2026-08-22 - Last updated in NVD database

Technical Details for CVE-2026-70974

Vulnerability Analysis

The vulnerability resides in the Security component of Oracle Hyperion Financial Management, an enterprise application used for financial consolidation, close, and reporting. The weakness allows a low-privileged, authenticated attacker to bypass intended access controls and retrieve confidential data belonging to other users or protected application objects.

The advisory indicates only confidentiality is impacted. Data integrity and availability remain unaffected, meaning an attacker cannot modify or destroy records through this specific flaw. The exposed data may include financial figures, entity structures, user metadata, or configuration information stored within Hyperion.

Exploitation is rated as difficult, indicating that special conditions or timing must be met beyond simple request crafting. However, since the attack requires no user interaction and can be launched remotely over HTTP, defenders should treat any authenticated user session as a potential attack origin.

Root Cause

The root cause maps to [CWE-200], where the application discloses information to actors outside the intended trust boundary. In Hyperion Financial Management, this typically results from incomplete authorization checks in the Security component when serving HTTP requests for protected resources.

Attack Vector

The attack vector is network-based over HTTP. An attacker must first hold valid low-privilege credentials to the Hyperion application. From that authenticated session, the attacker sends crafted requests to endpoints in the Security component to retrieve data that the account should not be able to view. No social engineering or client-side interaction is required.

Oracle has not published exploitation code, and no public proof of concept is available. Technical implementation details are restricted to the Oracle Security Alert August 2026.

Detection Methods for CVE-2026-70974

Indicators of Compromise

Unusual volumes of HTTP requests from a single authenticated Hyperion session targeting the Security component or administrative endpoints.
Access log entries showing low-privileged accounts retrieving data objects, entities, or reports outside their assigned scope.
Anomalous response sizes returned to accounts that historically issue only small queries.

Detection Strategies

Correlate Hyperion application logs with identity provider logs to identify low-privileged accounts performing broad data reads.
Baseline normal query patterns per user role, then alert on deviations such as cross-entity or cross-scenario data retrieval.
Inspect web server and reverse proxy logs for repeated GET and POST requests to Security component URIs from a single session.

Monitoring Recommendations

Enable verbose audit logging in Oracle Hyperion Financial Management and forward events to a centralized SIEM for retention and correlation.
Monitor for privilege changes, new role assignments, and failed authorization events within the Security component.
Track authentication anomalies including logins from new geolocations or off-hours access by service and functional accounts.

How to Mitigate CVE-2026-70974

Immediate Actions Required

Apply the patches referenced in the Oracle Security Alert August 2026 to all affected Hyperion Financial Management instances.
Inventory Hyperion Financial Management deployments and confirm the running version of 11.2.25.0.000 or earlier supported releases.
Review recent audit logs for signs of unauthorized data access by low-privileged accounts.
Rotate credentials for any account suspected of misuse and enforce multi-factor authentication for Hyperion access.

Patch Information

Oracle released a fix as part of the August 2026 out-of-cycle Security Alert. Administrators should follow Oracle's standard patching procedure for Hyperion Financial Management, including staged deployment through development and test environments before production rollout. Refer to the Oracle Security Alert August 2026 for the exact patch identifiers and installation instructions.

Workarounds

Restrict network access to the Hyperion HTTP interface using firewall rules or reverse proxy allowlists that limit traffic to trusted management networks.
Enforce the principle of least privilege by auditing role assignments and removing unnecessary access for low-privileged users until patches are applied.
Terminate idle authenticated sessions aggressively to reduce the window in which an attacker can craft exploit requests.

bash

# Example: restrict Hyperion HTTP access to a trusted management subnet
# (adapt interface, port, and CIDR to your environment)
iptables -A INPUT -p tcp --dport 19000 -s 10.10.20.0/24 -j ACCEPT
iptables -A INPUT -p tcp --dport 19000 -j DROP