CVE-2026-70825: Oracle Hyperion Auth Bypass Vulnerability

CVE-2026-70825 Overview

CVE-2026-70825 is an information disclosure vulnerability in Oracle Hyperion Financial Management, part of the Oracle Hyperion product family. The affected component is Security, and the supported version impacted is 11.2.25.0.000. A low-privileged attacker with network access over HTTP can exploit this flaw without user interaction. Successful exploitation grants unauthorized read access to critical data or complete access to all Oracle Hyperion Financial Management accessible data. The vulnerability affects confidentiality only, with no impact to integrity or availability.

Critical Impact
Authenticated network attackers can obtain unauthorized access to all data accessible through Oracle Hyperion Financial Management, exposing sensitive financial reporting information.

Affected Products

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

Discovery Timeline

2026-08-18 - CVE-2026-70825 published to NVD
2026-08-20 - Last updated in NVD database

Technical Details for CVE-2026-70825

Vulnerability Analysis

CVE-2026-70825 resides in the Security component of Oracle Hyperion Financial Management. The flaw allows a low-privileged authenticated user, acting over HTTP, to bypass access restrictions and read data that should be restricted to higher-privileged roles. Oracle's advisory classifies the impact as confidentiality-only, meaning the attacker can view but not modify or destroy data.

Because Oracle Hyperion Financial Management stores consolidated financial data, general-ledger information, and management reporting artifacts, the exposure of this data can affect regulatory compliance, insider-trading controls, and merger-and-acquisition confidentiality. The vulnerability requires only network reachability to the Hyperion HTTP endpoint and any authenticated low-privilege account.

Root Cause

Oracle has not released detailed root-cause information beyond the advisory. The Security component designation and the confidentiality-only impact indicate a broken access control or authorization enforcement failure. The application appears to serve protected resources or query results to users whose role or entitlement level should not grant that access.

Attack Vector

Exploitation follows a straightforward pattern. An attacker authenticates to the Hyperion Financial Management web interface using any valid low-privilege account. The attacker then issues crafted HTTP requests against endpoints in the Security component to retrieve data outside their entitled scope. No user interaction from a victim is required, and the attack complexity is low. See the Oracle Security Alert for vendor guidance.

No public proof-of-concept exploit is available for CVE-2026-70825 at the time of publication.

Detection Methods for CVE-2026-70825

Indicators of Compromise

Anomalous HTTP requests from low-privilege user sessions targeting Hyperion Financial Management Security endpoints.
Unusual volume of data-read or export operations from accounts that historically perform limited activity.
Session activity from a single authenticated user spanning multiple application modules or entities they do not normally access.

Detection Strategies

Enable and centrally collect Oracle Hyperion Financial Management application and audit logs, focusing on authentication events and data-access records.
Baseline typical query patterns per role and alert on deviations, particularly bulk reads of consolidated financial data by non-administrative accounts.
Correlate web server access logs with application audit logs to identify HTTP request patterns tied to unauthorized data retrieval.

Monitoring Recommendations

Forward Hyperion application logs, web server logs, and identity provider logs to a centralized SIEM for cross-source correlation.
Monitor privileged account creation and role assignment changes on the Hyperion server outside standard change windows.
Track outbound network flows from the Hyperion application server for unexpected data egress volumes.

How to Mitigate CVE-2026-70825

Immediate Actions Required

Apply the Oracle Critical Patch Update referenced in the Oracle Security Alert covering CVE-2026-70825.
Review all Hyperion Financial Management user accounts and remove or disable accounts that are inactive, orphaned, or over-privileged.
Rotate credentials for low-privilege accounts and enforce multi-factor authentication on the Hyperion authentication path.

Patch Information

Oracle addressed CVE-2026-70825 in its August 2026 Critical Patch Update cycle. Administrators should consult the Oracle Security Alert for the exact patch identifier corresponding to Oracle Hyperion Financial Management 11.2.25.0.000 and apply it in accordance with Oracle's installation instructions.

Workarounds

Restrict network access to the Hyperion Financial Management HTTP interface to trusted management networks using firewall or reverse-proxy allow-lists.
Place the Hyperion web tier behind a web application firewall configured to inspect and rate-limit requests to Security component endpoints.
Enforce least-privilege role assignments and remove entitlements that are not required for daily business tasks until the patch is deployed.

bash

# Example: restrict inbound HTTP access to Hyperion using iptables
iptables -A INPUT -p tcp --dport 443 -s 10.0.0.0/24 -j ACCEPT
iptables -A INPUT -p tcp --dport 443 -j DROP