CVE-2026-70963: Oracle Hyperion Auth Bypass Vulnerability

CVE-2026-70963 Overview

CVE-2026-70963 affects the Oracle Hyperion Infrastructure Technology product within Oracle Hyperion, specifically the Installation and Configuration component. The supported version affected is 11.2.25.0.000. A low-privileged attacker with network access via HTTP can compromise the product, though exploitation is difficult. Successful exploitation grants unauthorized update, insert, or delete access to a subset of accessible data, along with unauthorized read access to a subset of accessible data. The weakness maps to improper access control [CWE-284].

Critical Impact
Authenticated attackers can achieve limited unauthorized read and write access to Oracle Hyperion Infrastructure Technology data over the network.

Affected Products

Oracle Hyperion Infrastructure Technology 11.2.25.0.000
Component: Installation and Configuration
Deployments exposing the Hyperion HTTP interface to authenticated users

Discovery Timeline

2026-08-18 - CVE-2026-70963 published to NVD
2026-08-20 - Last updated in NVD database
Vendor advisory published in the Oracle Critical Patch Update Advisory - August 2026

Technical Details for CVE-2026-70963

Vulnerability Analysis

The vulnerability resides in the Installation and Configuration component of Oracle Hyperion Infrastructure Technology. Oracle classifies the flaw as difficult to exploit, requiring existing low-privilege access on the target system. An attacker sending crafted HTTP requests can bypass intended access restrictions to modify or read data belonging to other users or scopes within the Hyperion environment.

Impact is scoped: confidentiality and integrity effects apply to a subset of accessible data, and availability is not impacted. There is no user interaction requirement, and the scope of the attack does not change (S:U). No public exploit is available, and the vulnerability is not listed in the CISA Known Exploited Vulnerabilities catalog.

Root Cause

The issue is categorized under [CWE-284] Improper Access Control. Access control checks within the Installation and Configuration component fail to consistently enforce authorization for privileged operations exposed over HTTP. Authenticated users with limited permissions can therefore reach functionality or data that should require higher privileges.

Attack Vector

Exploitation requires network reachability to the Oracle Hyperion Infrastructure Technology HTTP endpoints and valid low-privileged credentials. The attacker sends HTTP requests against the vulnerable component in the Installation and Configuration surface. High attack complexity indicates specific conditions or timing must be met for the access control bypass to succeed. Refer to the Oracle Security Alert for vendor-supplied technical details.

Detection Methods for CVE-2026-70963

Indicators of Compromise

Unexpected HTTP requests to Hyperion Installation and Configuration endpoints originating from low-privilege user sessions
Unauthorized create, update, or delete operations against Hyperion configuration data recorded in application logs
Read access to Hyperion configuration objects by accounts that do not typically interact with them

Detection Strategies

Enable verbose HTTP access and application audit logging on Hyperion Infrastructure Technology servers to capture request paths, user identities, and response codes
Baseline expected API usage per user role and alert on deviations, particularly write operations from accounts scoped to read-only functions
Correlate Hyperion authentication events with subsequent configuration changes to surface privilege boundary crossings

Monitoring Recommendations

Forward Hyperion application, WebLogic, and OHS access logs to a centralized SIEM for retention and correlation
Monitor for HTTP 4xx and 5xx spikes indicative of enumeration or forced-browsing attempts against Installation and Configuration URIs
Track privileged configuration changes and compare them against approved change tickets

How to Mitigate CVE-2026-70963

Immediate Actions Required

Apply the fixes documented in the Oracle Critical Patch Update Advisory - August 2026 to Oracle Hyperion Infrastructure Technology 11.2.25.0.000
Inventory all Hyperion deployments and confirm patch status for the Installation and Configuration component
Review and reduce the population of accounts holding low-privileged access to the Hyperion HTTP interface

Patch Information

Oracle addresses CVE-2026-70963 as part of the August 2026 Critical Patch Update. Administrators should download the applicable patch bundle for Oracle Hyperion Infrastructure Technology 11.2.25.0.000 from Oracle Support and follow the vendor's staged deployment guidance. Validate patch application in a non-production environment before rolling out to production Hyperion nodes.

Workarounds

Restrict network access to Hyperion HTTP endpoints using firewall rules and reverse proxy allow-lists limited to trusted administrative networks
Enforce least-privilege role assignments and remove unused Hyperion user accounts
Require multi-factor authentication for all Hyperion administrative and user access to raise the bar for credential-based access

bash

# Configuration example - refer to Oracle documentation for authoritative steps
# Restrict Hyperion HTTP access at the perimeter
iptables -A INPUT -p tcp --dport 19000 -s <trusted_admin_subnet> -j ACCEPT
iptables -A INPUT -p tcp --dport 19000 -j DROP