CVE-2026-62550: Oracle Hyperion Auth Bypass Vulnerability

CVE-2026-62550 Overview

CVE-2026-62550 is an information disclosure vulnerability in the Oracle Hyperion Infrastructure Technology product, specifically within the Installation and Configuration component. The flaw affects version 11.2.25.0.000 and is remotely exploitable over HTTP without authentication or user interaction. Successful exploitation grants an attacker unauthorized read access to critical data or complete access to all data accessible to Oracle Hyperion Infrastructure Technology. Oracle published this issue in the August 2026 Critical Patch Update security alert.

Critical Impact
An unauthenticated network attacker can access sensitive configuration and application data managed by Oracle Hyperion Infrastructure Technology without any credentials or user interaction.

Affected Products

Oracle Hyperion Infrastructure Technology 11.2.25.0.000
Oracle Hyperion product family (Installation and Configuration component)
Deployments exposing the Hyperion HTTP interface to untrusted networks

Discovery Timeline

2026-08-18 - CVE-2026-62550 published to NVD
2026-08-20 - Last updated in NVD database

Technical Details for CVE-2026-62550

Vulnerability Analysis

The vulnerability resides in the Installation and Configuration component of Oracle Hyperion Infrastructure Technology. An attacker with network access to the Hyperion HTTP endpoints can trigger the flaw without authentication or user interaction. The impact is scoped to confidentiality: the attacker can retrieve critical data accessible to the Hyperion Infrastructure Technology product. Integrity and availability of the target system are not affected according to Oracle's advisory.

Hyperion is deployed as an enterprise performance management platform, so exposed data can include financial reporting artifacts, configuration metadata, and credentials embedded in configuration files. Because exploitation only requires HTTP access, environments that expose Hyperion consoles to internal networks without segmentation are at greater risk.

Root Cause

Oracle's advisory classifies the issue as an easily exploitable flaw in the Installation and Configuration component that permits unauthorized data disclosure. Oracle has not published the specific weakness type, and no CWE identifier is listed in the NVD entry at the time of publication. See the Oracle Security Alert for vendor-provided technical details.

Attack Vector

Exploitation occurs remotely over HTTP. The attacker sends crafted requests to the Hyperion Infrastructure Technology service and receives sensitive data in the response. No credentials, tokens, or prior foothold are required. The EPSS probability score is 0.416% (percentile 34.902) as of 2026-08-20, indicating limited observed exploitation activity so far, though the low attack complexity warrants prompt remediation.

No verified exploit code is publicly available. Refer to the Oracle security alert for authoritative technical details.

Detection Methods for CVE-2026-62550

Indicators of Compromise

Unauthenticated HTTP or HTTPS requests to Hyperion Infrastructure Technology endpoints originating from unexpected internal or external hosts
Anomalously large HTTP responses returned by Hyperion configuration URLs
Access log entries from user agents not associated with Hyperion administrators or automation

Detection Strategies

Enable verbose access logging on the Hyperion HTTP frontend and forward logs to a centralized analytics platform for baseline comparison
Alert on repeated requests to Installation and Configuration URLs from a single source within short time windows
Correlate Hyperion access logs with network flow data to identify off-hours or cross-segment access

Monitoring Recommendations

Monitor egress traffic from Hyperion servers for unexpected outbound transfers following inbound HTTP activity
Track authentication failures alongside successful anonymous responses to identify probing behavior
Review Hyperion service accounts for unusual read operations against configuration stores

How to Mitigate CVE-2026-62550

Immediate Actions Required

Apply the August 2026 Oracle Critical Patch Update fixes to Oracle Hyperion Infrastructure Technology 11.2.25.0.000 as documented in the Oracle Security Alert
Restrict network access to Hyperion HTTP endpoints so only trusted administrative networks can reach the service
Audit Hyperion configuration files and rotate any credentials that may have been exposed

Patch Information

Oracle addressed CVE-2026-62550 in the August 2026 Critical Patch Update advisory. Administrators should download the applicable patch for Oracle Hyperion Infrastructure Technology 11.2.25.0.000 from My Oracle Support and apply it during the next maintenance window. Review the Oracle Security Alert for the definitive patch matrix and prerequisite information.

Workarounds

Place Hyperion behind a reverse proxy or web application firewall that enforces authentication on Installation and Configuration URLs
Enforce network-layer access controls that limit HTTP reachability to a defined administrative subnet
Disable or remove unused Hyperion Infrastructure Technology components that expose configuration endpoints if operationally feasible

bash

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