CVE-2026-70964: Oracle Hyperion Auth Bypass Vulnerability

CVE-2026-70964 Overview

CVE-2026-70964 affects the Installation and Configuration component of Oracle Hyperion Infrastructure Technology, version 11.2.25.0.000. The vulnerability allows a low-privileged attacker with network access via HTTP to compromise the product. Successful exploitation results in unauthorized read, create, delete, or modify access to all data accessible by Oracle Hyperion Infrastructure Technology. The flaw includes a scope change, meaning exploitation can affect components beyond the vulnerable product itself. Oracle disclosed the issue in the August 2026 Security Alert cycle.

Critical Impact
Attackers can gain complete unauthorized read and write access to critical Hyperion data, with impact extending beyond the vulnerable component due to scope change.

Affected Products

Oracle Hyperion Infrastructure Technology 11.2.25.0.000
Component: Installation and Configuration
Oracle Hyperion product family (scope-changed impact)

Discovery Timeline

2026-08-18 - CVE-2026-70964 published to NVD
2026-08-20 - Last updated in NVD database
August 2026 - Disclosed in Oracle Security Alert August 2026

Technical Details for CVE-2026-70964

Vulnerability Analysis

The vulnerability is classified as an Improper Access Control weakness [CWE-284] within the Installation and Configuration component of Oracle Hyperion Infrastructure Technology. An authenticated attacker holding low privileges can send crafted HTTP requests to reach functionality that should be restricted. Exploitation is rated as high complexity, indicating specific conditions must be met for the attack to succeed.

The scope change in the CVSS vector is significant. The vulnerable component and the impacted component differ, so a successful attack against Hyperion Infrastructure Technology extends its consequences to other Hyperion products relying on the same security authority. Confidentiality and integrity impacts are both rated high, while availability is unaffected.

Root Cause

The root cause is improper access control [CWE-284] in the Installation and Configuration component. Authorization checks fail to correctly restrict actions to users with appropriate privileges. This allows a low-privileged authenticated user to reach data operations reserved for administrators.

Attack Vector

The attack vector is network-based over HTTP. The attacker must hold valid low-privilege credentials to the Hyperion environment. No user interaction is required. Because exploitation requires meeting specific preconditions, attack complexity is high, but the resulting data exposure and modification capability is broad.

No public proof-of-concept exploit is available at the time of publication. See the Oracle Security Alert August 2026 for vendor technical guidance.

Detection Methods for CVE-2026-70964

Indicators of Compromise

Unexpected HTTP requests from low-privileged accounts targeting Installation and Configuration endpoints of Hyperion Infrastructure Technology.
Unauthorized creation, modification, or deletion of Hyperion configuration objects or user records outside of scheduled administrative activity.
Authentication events from Hyperion service accounts followed by cross-component data access spanning multiple Hyperion products.

Detection Strategies

Monitor Hyperion application and web server logs for HTTP requests to administrative or configuration endpoints originating from non-administrative user contexts.
Correlate authentication events with subsequent privileged operations to identify authorization decisions that do not match the account's assigned role.
Baseline normal configuration change velocity and alert on deviations, particularly bulk read or modification of critical data objects.

Monitoring Recommendations

Enable verbose audit logging on Oracle Hyperion Infrastructure Technology and forward logs to a centralized analytics platform.
Track privilege boundary crossings between Hyperion components to detect scope-change exploitation attempts.
Alert on service account use from unusual source addresses or during off-hours administrative windows.

How to Mitigate CVE-2026-70964

Immediate Actions Required

Apply the fixes referenced in the Oracle Security Alert August 2026 to all Hyperion Infrastructure Technology 11.2.25.0.000 deployments.
Inventory all low-privileged accounts with HTTP access to Hyperion and validate that role assignments follow least privilege.
Rotate credentials for any account suspected of interacting with Installation and Configuration endpoints outside of authorized workflows.

Patch Information

Oracle released remediation for CVE-2026-70964 in the August 2026 Security Alert. Administrators should consult the Oracle Security Alert August 2026 for the specific patch bundle and prerequisites for version 11.2.25.0.000. Given the scope change and high confidentiality and integrity impact, patching should be prioritized on internet-exposed and multi-tenant Hyperion deployments.

Workarounds

Restrict network access to Hyperion Infrastructure Technology HTTP endpoints to trusted administrative networks using firewall or reverse proxy rules.
Enforce web application firewall policies that block requests to Installation and Configuration URIs from non-administrative user roles.
Disable or suspend low-privileged accounts that do not require access to Hyperion until patches are applied.

bash

# Example: restrict HTTP access to Hyperion admin endpoints at the reverse proxy
location /hyperion/admin/ {
    allow 10.10.20.0/24;   # administrative subnet
    deny all;
    proxy_pass http://hyperion-backend;
}