CVE-2026-70967: Oracle Hyperion Auth Bypass Vulnerability

CVE-2026-70967 Overview

CVE-2026-70967 is a high-severity access control vulnerability in Oracle Hyperion Infrastructure Technology, specifically within the Installation and Configuration component. The affected version is 11.2.25.0.000. A low-privileged attacker with local logon access to the infrastructure hosting Oracle Hyperion Infrastructure Technology can exploit this weakness to compromise the product. Successful exploitation grants unauthorized read, create, delete, or modify access to all data accessible by Oracle Hyperion Infrastructure Technology. The vulnerability is classified under CWE-284: Improper Access Control.

Critical Impact
Local, low-privileged attackers can achieve full read and write access to critical Oracle Hyperion Infrastructure Technology data, undermining confidentiality and integrity of enterprise financial and performance management data.

Affected Products

Oracle Hyperion Infrastructure Technology, version 11.2.25.0.000
Component: Installation and Configuration
Oracle Hyperion product family

Discovery Timeline

2026-08-18 - CVE-2026-70967 published to NVD
2026-08-20 - Last updated in NVD database
August 2026 - Included in the Oracle Security Alert August 2026

Technical Details for CVE-2026-70967

Vulnerability Analysis

The flaw resides in the Installation and Configuration component of Oracle Hyperion Infrastructure Technology. The component fails to enforce proper access control on operations reachable by authenticated local users. An attacker who already holds a low-privileged account on the host can leverage this gap to reach resources and functionality that should be restricted to administrators. The impact spans confidentiality and integrity, since the attacker can both read protected data and create, modify, or delete records within the platform. Availability is not impacted based on the vendor's assessment.

Root Cause

The root cause is improper access control [CWE-284] in the Installation and Configuration subsystem. Authorization checks are missing or insufficient for operations that expose sensitive configuration data and administrative functionality. Because the vulnerable code path trusts the caller's session without validating privilege scope, any authenticated principal on the underlying host inherits access to data owned by higher-privileged roles.

Attack Vector

Exploitation requires local access, meaning the attacker must first authenticate to the infrastructure where Oracle Hyperion Infrastructure Technology runs. Remote exploitation across the network is not viable. Once logged in, the attacker interacts with the affected component directly. The attack complexity is low and no user interaction is required, so an attacker with a valid low-privilege shell account can trigger the condition reliably. Common precursors include credential theft, insider abuse, or lateral movement from a previously compromised host.

No public proof-of-concept exploit is currently available, and the vulnerability is not listed in the CISA Known Exploited Vulnerabilities catalog. Refer to the Oracle Security Alert August 2026 for vendor technical details.

Detection Methods for CVE-2026-70967

Indicators of Compromise

Unexpected read or write operations against Oracle Hyperion configuration files performed by non-administrative local accounts
New or modified entries in Hyperion configuration stores that do not correspond to change-management tickets
Interactive logons to Hyperion servers from service or low-privileged accounts outside normal maintenance windows

Detection Strategies

Audit local logon events on hosts running Oracle Hyperion Infrastructure Technology 11.2.25.0.000 and correlate with subsequent access to Hyperion configuration paths
Enable file integrity monitoring on Hyperion installation directories and configuration repositories to flag unauthorized modifications
Review Oracle Hyperion audit logs for administrative actions initiated by accounts that lack administrative role assignments

Monitoring Recommendations

Forward host authentication logs and Hyperion application logs to a central data lake for correlation and long-term retention
Alert on privilege boundary violations, such as low-privileged users invoking installation or configuration utilities
Baseline normal administrative activity on Hyperion hosts and alert on deviations in user, time-of-day, or command patterns

How to Mitigate CVE-2026-70967

Immediate Actions Required

Apply the fixes distributed with the Oracle Security Alert August 2026 as soon as change windows allow
Inventory all Oracle Hyperion Infrastructure Technology 11.2.25.0.000 installations and prioritize patching internet-adjacent and multi-tenant hosts
Review and restrict local logon rights on Hyperion servers to a minimal set of vetted administrative accounts
Rotate credentials for any account that had interactive access to affected hosts prior to patching

Patch Information

Oracle addressed CVE-2026-70967 in the August 2026 Critical Patch Update cycle. Administrators should download and install the fix referenced in the Oracle Security Alert August 2026. Validate patch application by confirming the updated build number and re-running configuration checks in a non-production environment before rolling forward to production.

Workarounds

Restrict interactive and remote desktop access to Hyperion hosts using operating system group policies and jump-host controls
Enforce least privilege for service accounts and remove local logon rights from accounts that do not require them
Segment Hyperion infrastructure onto dedicated network zones with strict access control lists to reduce lateral movement risk
Increase audit logging on Hyperion hosts until the vendor patch can be fully deployed

bash

# Example: restrict interactive logon on a Windows Hyperion host to the Hyperion admin group
secedit /export /cfg current.inf
# Edit SeInteractiveLogonRight to include only vetted administrators, then:
secedit /configure /db secedit.sdb /cfg current.inf /overwrite