CVE-2026-62554: Oracle Hyperion Information Disclosure Bug

CVE-2026-62554 Overview

CVE-2026-62554 is a high-severity information disclosure vulnerability in Oracle Hyperion Infrastructure Technology, part of the Oracle Hyperion product family. The flaw resides in the Installation and Configuration component of version 11.2.25.0.000. An unauthenticated attacker with network access over HTTP can exploit the vulnerability without user interaction. Successful exploitation results in unauthorized access to critical data or complete access to all data accessible through Oracle Hyperion Infrastructure Technology. Oracle addressed the issue in Security Alert CSPUAUG2026.

Critical Impact
Remote, unauthenticated attackers can read all data accessible to Oracle Hyperion Infrastructure Technology over HTTP, exposing confidential financial and business intelligence data.

Affected Products

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

Discovery Timeline

2026-08-18 - CVE-2026-62554 published to the National Vulnerability Database
2026-08-18 - Oracle publishes Security Alert CSPUAUG2026 with fix guidance
2026-08-20 - Last updated in NVD database

Technical Details for CVE-2026-62554

Vulnerability Analysis

The vulnerability affects the Installation and Configuration component of Oracle Hyperion Infrastructure Technology. Oracle classifies the issue as easily exploitable by an unauthenticated attacker over the network. The impact is scoped entirely to confidentiality; integrity and availability are not affected. Attackers do not need credentials, elevated privileges, or user interaction to trigger the flaw.

Oracle Hyperion Infrastructure Technology underpins Enterprise Performance Management (EPM) deployments and manages authentication, provisioning, and shared services. A confidentiality failure in this layer can expose financial planning, consolidation, and reporting data. Because the attack path uses standard HTTP, the vulnerability is reachable through any exposed Hyperion web endpoint.

Oracle has not published a CWE identifier or detailed root-cause technical description for this issue. Refer to the Oracle Security Alert CSPUAUG2026 for authoritative technical details and fix instructions. The current EPSS probability is 0.416%.

Root Cause

Oracle has not disclosed the root cause in public documentation. The advisory scope points to an improper access control or information exposure weakness in the Installation and Configuration component that allows unauthenticated HTTP requests to retrieve protected data.

Attack Vector

The attack vector is network-based over HTTP. An attacker sends crafted HTTP requests to a reachable Oracle Hyperion Infrastructure Technology instance. No authentication, no privileges, and no user interaction are required. The scope remains unchanged, so impact is limited to resources managed by the vulnerable component, though those resources include all data the Hyperion service can access.

// No public proof-of-concept code is available for CVE-2026-62554.
// Refer to Oracle Security Alert CSPUAUG2026 for authoritative details.

Detection Methods for CVE-2026-62554

Indicators of Compromise

Unauthenticated HTTP requests to Oracle Hyperion Infrastructure Technology endpoints originating from external or unexpected internal sources.
Unusual outbound data volumes from Hyperion application servers correlating with inbound HTTP scans.
Access to configuration or shared-services endpoints without a preceding authentication event in application logs.

Detection Strategies

Inventory all Oracle Hyperion Infrastructure Technology deployments and confirm whether any run version 11.2.25.0.000.
Inspect HTTP access logs for anonymous requests targeting Installation and Configuration URLs.
Correlate web server logs with authentication logs to identify sessions returning sensitive data without a valid login.

Monitoring Recommendations

Forward Hyperion web tier logs, WebLogic access logs, and Shared Services logs to a centralized SIEM or data lake for continuous review.
Alert on request bursts, directory enumeration patterns, and repeated 200-status responses to unauthenticated endpoints.
Baseline normal administrative access to Hyperion consoles and flag deviations in source IP, user agent, or request timing.

How to Mitigate CVE-2026-62554

Immediate Actions Required

Apply the patch referenced in Oracle Security Alert CSPUAUG2026 to affected Oracle Hyperion Infrastructure Technology 11.2.25.0.000 deployments.
Restrict inbound HTTP access to Hyperion servers to trusted management networks only.
Review recent access logs for signs of unauthenticated data retrieval prior to patching.

Patch Information

Oracle released the fix for CVE-2026-62554 as part of Security Alert CSPUAUG2026 on 2026-08-18. Administrators should follow Oracle's documented patching procedure for Hyperion Infrastructure Technology and validate the fix in a staging environment before production rollout. Consult the Oracle Security Alert CSPUAUG2026 for exact patch identifiers and prerequisite updates.

Workarounds

Place Hyperion HTTP endpoints behind a reverse proxy or web application firewall that enforces authentication before request forwarding.
Segment Hyperion infrastructure from general corporate networks and block external HTTP exposure at the perimeter.
Disable or restrict access to Installation and Configuration endpoints until the patch is applied.

bash

# Example: restrict Hyperion HTTP access with iptables to trusted management subnet
iptables -A INPUT -p tcp --dport 19000 -s 10.10.20.0/24 -j ACCEPT
iptables -A INPUT -p tcp --dport 19000 -j DROP