CVE-2026-62552: Oracle Hyperion Information Disclosure

CVE-2026-62552 Overview

CVE-2026-62552 is a vulnerability in the Oracle Hyperion Infrastructure Technology product, specifically within the Installation and Configuration component. The affected version is 11.2.25.0.000. An unauthenticated attacker with network access via HTTP can exploit the flaw to gain unauthorized access to sensitive data managed by Oracle Hyperion Infrastructure Technology. The vulnerability affects confidentiality only, without impacting integrity or availability. Oracle disclosed the issue in its August 2026 security alert.

Critical Impact
Successful exploitation allows unauthenticated remote attackers to access critical data or obtain complete read access to all data accessible by Oracle Hyperion Infrastructure Technology.

Affected Products

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

Discovery Timeline

2026-08-18 - CVE-2026-62552 published to the National Vulnerability Database
2026-08-20 - Last updated in NVD database

Technical Details for CVE-2026-62552

Vulnerability Analysis

The vulnerability resides in the Installation and Configuration component of Oracle Hyperion Infrastructure Technology. The flaw is remotely reachable over HTTP and requires no authentication or user interaction. Exploitation yields unauthorized read access to data processed and stored within the Hyperion Infrastructure Technology stack.

Oracle categorizes this as an easily exploitable vulnerability. Attackers can target internet-exposed or intranet-reachable Hyperion deployments and retrieve sensitive financial planning, consolidation, and reporting data. The EPSS probability is 0.316%, reflecting the current predicted exploitation likelihood.

Root Cause

Oracle has not published detailed root cause information beyond the advisory summary. The issue resides in the Installation and Configuration component and does not require valid credentials, indicating a missing or improperly enforced authentication or authorization check on an HTTP-accessible interface. Consult the Oracle Security Alert for vendor-supplied technical detail.

Attack Vector

The attack vector is Network over HTTP. An unauthenticated remote attacker sends crafted HTTP requests to a vulnerable Oracle Hyperion Infrastructure Technology endpoint. No user interaction is required, and the attack complexity is low. The impact is limited to disclosure of confidential data; the flaw does not permit modification or denial of service.

No public proof-of-concept code, exploit modules, or in-the-wild exploitation reports have been published. The vulnerability is not listed in the CISA Known Exploited Vulnerabilities catalog.

Detection Methods for CVE-2026-62552

Indicators of Compromise

Unauthenticated HTTP requests to Oracle Hyperion Infrastructure Technology endpoints originating from external or unexpected internal sources.
Anomalous volumes of GET requests to Installation and Configuration URIs on Hyperion hosts.
Outbound transfers of Hyperion configuration data or financial datasets to untrusted destinations.

Detection Strategies

Inspect web server and reverse proxy logs on Hyperion hosts for HTTP requests that do not include valid session tokens or authentication headers.
Baseline expected administrative traffic patterns against 11.2.25.0.000 deployments and alert on deviations.
Correlate access to Hyperion Infrastructure Technology components with authenticated user sessions to identify unauthenticated reads.

Monitoring Recommendations

Enable verbose HTTP access logging on all Oracle Hyperion front-end and mid-tier servers.
Forward Hyperion application, web, and OS logs into a centralized SIEM for retention and correlation.
Monitor egress traffic from Hyperion servers for large or unexpected data transfers.

How to Mitigate CVE-2026-62552

Immediate Actions Required

Apply the fixes referenced in the Oracle August 2026 security alert as soon as testing permits.
Inventory all Oracle Hyperion Infrastructure Technology deployments running version 11.2.25.0.000.
Restrict network reachability of Hyperion HTTP interfaces to trusted administrative networks only.
Review recent HTTP access logs for signs of unauthenticated data access.

Patch Information

Oracle addressed CVE-2026-62552 in the August 2026 Critical Patch Update advisory. Customers should download and apply the vendor-supplied patch for Oracle Hyperion Infrastructure Technology 11.2.25.0.000. Refer to the Oracle Security Alert for patch identifiers, download links, and installation prerequisites.

Workarounds

Place Hyperion Infrastructure Technology components behind an authenticating reverse proxy or VPN if immediate patching is not feasible.
Enforce network-level access controls limiting HTTP access to administrator subnets.
Disable or firewall unused Installation and Configuration endpoints until the patch is deployed.

bash

# Example: restrict HTTP access to Hyperion to a trusted admin subnet using iptables
iptables -A INPUT -p tcp --dport 19000 -s 10.10.50.0/24 -j ACCEPT
iptables -A INPUT -p tcp --dport 19000 -j DROP