CVE-2026-62579: Oracle Hyperion Information Disclosure Flaw

CVE-2026-62579 Overview

CVE-2026-62579 is an information disclosure vulnerability in the Oracle Hyperion Infrastructure Technology product, part of the Oracle Hyperion suite. The flaw resides in the Installation and Configuration component of version 11.2.25.0.000. An unauthenticated attacker with network access via HTTP can exploit this weakness to gain unauthorized read access to a subset of Oracle Hyperion Infrastructure Technology data. The vulnerability requires no user interaction and no privileges, making it straightforward to exploit against exposed instances.

Critical Impact
An unauthenticated network attacker can read a subset of Oracle Hyperion Infrastructure Technology data over HTTP without user interaction.

Affected Products

Oracle Hyperion Infrastructure Technology 11.2.25.0.000
Installation and Configuration component
Oracle Hyperion product family

Discovery Timeline

2026-08-18 - CVE-2026-62579 published to NVD
2026-08-20 - Last updated in NVD database

Technical Details for CVE-2026-62579

Vulnerability Analysis

The vulnerability affects the Installation and Configuration component of Oracle Hyperion Infrastructure Technology. Successful exploitation grants unauthorized read access to a subset of data managed by the product. The attack path is network-based over HTTP, and no authentication or user interaction is required. Confidentiality is impacted, while integrity and availability remain intact according to the published CVSS vector.

Exposure of Hyperion Infrastructure Technology data can reveal configuration details, deployment topology, or other sensitive information that supports further reconnaissance against enterprise performance management deployments. Oracle addressed this issue as part of its scheduled security update cycle. Refer to the Oracle Security Alert for full advisory content and patch guidance.

Root Cause

Oracle has not published detailed root cause information beyond identifying the Installation and Configuration component. The advisory indicates that the affected code path does not enforce authentication for a subset of accessible data, allowing anonymous HTTP clients to retrieve information that should be protected.

Attack Vector

The attack originates from the network. An attacker sends crafted HTTP requests to an exposed Oracle Hyperion Infrastructure Technology instance and receives protected data in the response. No credentials, tokens, or user interaction are required. Systems exposed to untrusted networks face the highest risk. Oracle has not disclosed proof-of-concept code, and no public exploit is currently available.

// No verified exploit code is available for CVE-2026-62579.
// Refer to the Oracle Security Alert (cspuaug2026) for advisory details.

Detection Methods for CVE-2026-62579

Indicators of Compromise

Anonymous HTTP requests to Oracle Hyperion Infrastructure Technology endpoints from unexpected source addresses.
Unusual response sizes returning configuration or infrastructure metadata to unauthenticated clients.
Access log entries showing enumeration patterns against Installation and Configuration URIs.

Detection Strategies

Inspect web server and application logs for unauthenticated requests reaching Hyperion Infrastructure Technology endpoints.
Correlate HTTP access patterns with source reputation to flag reconnaissance activity.
Alert on responses that return configuration data outside of expected administrative sessions.

Monitoring Recommendations

Forward Hyperion web tier logs to a centralized SIEM for retention and correlation.
Baseline normal request rates to Installation and Configuration endpoints and alert on deviations.
Monitor egress traffic from Hyperion servers for signs of downstream data exposure.

How to Mitigate CVE-2026-62579

Immediate Actions Required

Apply the Oracle Critical Patch Update referenced in the August 2026 Security Alert to affected Hyperion deployments.
Restrict network access to Hyperion Infrastructure Technology endpoints to trusted management networks only.
Inventory all Oracle Hyperion 11.2.25.0.000 installations and prioritize internet-exposed instances for patching.

Patch Information

Oracle has released a fix as part of the August 2026 Critical Patch Update cycle. Administrators should review the Oracle Security Alert and apply the corresponding patches to Oracle Hyperion Infrastructure Technology 11.2.25.0.000.

Workarounds

Place Hyperion Infrastructure Technology behind a reverse proxy or web application firewall that enforces authentication on all requests.
Apply network segmentation and firewall rules to block unauthenticated HTTP access from untrusted zones.
Disable or restrict access to Installation and Configuration endpoints when they are not actively required.

bash

# Example: restrict inbound HTTP access to Hyperion using iptables
iptables -A INPUT -p tcp --dport 19000 -s 10.0.0.0/8 -j ACCEPT
iptables -A INPUT -p tcp --dport 19000 -j DROP