CVE-2026-62506: Oracle Hyperion Information Disclosure

CVE-2026-62506 Overview

CVE-2026-62506 is a vulnerability in the Oracle Hyperion Infrastructure Technology product of Oracle Hyperion, affecting the Common Security component. The affected version is 11.2.25.0.000. A low-privileged attacker with network access via HTTP can exploit this flaw to compromise Oracle Hyperion Infrastructure Technology. Successful exploitation results in unauthorized read access to critical data or complete access to all Oracle Hyperion Infrastructure Technology accessible data. Oracle addressed the issue in the Oracle Security Alert August 2026.

Critical Impact
Authenticated network attackers can obtain unauthorized access to all data accessible through Oracle Hyperion Infrastructure Technology, exposing confidential financial and enterprise performance management information.

Affected Products

Oracle Hyperion Infrastructure Technology 11.2.25.0.000
Component: Common Security
Oracle Hyperion product family

Discovery Timeline

2026-08-18 - CVE-2026-62506 published to NVD
2026-08-20 - Last updated in NVD database

Technical Details for CVE-2026-62506

Vulnerability Analysis

The vulnerability resides in the Common Security component of Oracle Hyperion Infrastructure Technology. The flaw allows an attacker with valid low-level credentials to bypass access controls and retrieve confidential data across the Hyperion deployment. The exploit path requires only network access over HTTP, which aligns with typical intranet deployments of Hyperion Enterprise Performance Management (EPM) workloads.

The CVSS confidentiality impact is rated High, while integrity and availability remain unaffected. This indicates the weakness is a data disclosure or improper authorization issue rather than a code execution primitive. The EPSS probability is 0.371% at the 30.4 percentile, reflecting low observed exploitation activity at publication time.

Root Cause

Oracle has not published detailed root cause information beyond the advisory. The Common Security component handles authentication and authorization across Hyperion services, and the vulnerability stems from insufficient authorization enforcement that permits a low-privileged user to access data intended for higher-privileged roles. See the Oracle Security Alert August 2026 for vendor guidance.

Attack Vector

Exploitation requires network reachability to the Hyperion HTTP interface and a valid low-privilege account. Attack complexity is low, no user interaction is required, and the scope is unchanged. The attacker sends crafted HTTP requests to the Common Security component to retrieve data outside their authorization boundary.

// No verified public proof-of-concept is available for CVE-2026-62506.
// Refer to the Oracle Security Alert August 2026 for technical guidance.

Detection Methods for CVE-2026-62506

Indicators of Compromise

Unexpected HTTP requests from low-privilege Hyperion accounts to Common Security endpoints.
Anomalous data export or read volumes from Hyperion Infrastructure Technology services.
Access log entries showing accounts retrieving data outside their assigned scope or business unit.

Detection Strategies

Review Hyperion web tier and application server access logs for high-volume or off-hours HTTP requests to Common Security URLs.
Correlate Hyperion authentication events with data access events to identify privilege boundary violations.
Baseline normal request patterns for each Hyperion role and alert on deviations, particularly read operations by service or reporting accounts.

Monitoring Recommendations

Enable verbose audit logging on Oracle Hyperion Infrastructure Technology and forward logs to a centralized SIEM.
Monitor privileged data objects for read access by accounts that historically never accessed them.
Track HTTP 4xx and 5xx response ratios on Common Security endpoints, which may indicate enumeration attempts.

How to Mitigate CVE-2026-62506

Immediate Actions Required

Apply the security patch documented in the Oracle Security Alert August 2026 to all Hyperion Infrastructure Technology 11.2.25.0.000 deployments.
Inventory Hyperion accounts and revoke unused or dormant low-privilege credentials that could be leveraged for exploitation.
Restrict network access to Hyperion HTTP interfaces to trusted internal segments and enforce VPN or zero-trust gating.

Patch Information

Oracle released a fix as part of the August 2026 Security Alert. Administrators should follow the patch application process outlined by Oracle for Hyperion Infrastructure Technology 11.2.25.0.000, including staged deployment to non-production environments before applying to production tiers.

Workarounds

If patching is not immediately feasible, tighten role-based access controls in Hyperion Shared Services to minimize the data scope of low-privilege users.
Place a reverse proxy or web application firewall in front of Hyperion HTTP endpoints and restrict traffic to authenticated administrative IP ranges.
Increase auditing on Common Security actions and alert on any anomalous data retrieval until the patch is deployed.

bash

# Example: restrict access to Hyperion HTTP endpoints at the reverse proxy layer
# Only allow trusted subnets to reach Common Security URIs
location /interop/ {
    allow 10.10.20.0/24;   # trusted admin subnet
    deny  all;
    proxy_pass http://hyperion-backend;
}