CVE-2026-62535: Oracle Hyperion Information Disclosure Flaw

CVE-2026-62535 Overview

CVE-2026-62535 is a high-severity vulnerability in the Oracle Hyperion Infrastructure Technology product, within the Installation and Configuration component. The affected supported version is 11.2.25.0.000. An unauthenticated attacker with network access via multiple protocols can exploit this flaw to compromise Oracle Hyperion Infrastructure Technology. The vulnerability has a scope change, meaning successful exploitation can impact additional products beyond the vulnerable component. Successful attacks result in unauthorized access to critical data or complete access to all Oracle Hyperion Infrastructure Technology accessible data.

Critical Impact
Unauthenticated network attackers can gain complete read access to sensitive Oracle Hyperion Infrastructure Technology data, with impact extending beyond the vulnerable component due to scope change.

Affected Products

Oracle Hyperion Infrastructure Technology 11.2.25.0.000
Component: Installation and Configuration
Additional products may be impacted due to CVSS scope change

Discovery Timeline

2026-08-18 - CVE-2026-62535 published to NVD
2026-08-20 - Last updated in NVD database

Technical Details for CVE-2026-62535

Vulnerability Analysis

CVE-2026-62535 affects the Installation and Configuration component of Oracle Hyperion Infrastructure Technology. Oracle classifies the vulnerability as easily exploitable by unauthenticated attackers with network access via multiple protocols. Successful exploitation compromises the confidentiality of data managed by the platform.

The vulnerability carries a scope change, indicating that the impact extends beyond the security authority of the vulnerable component. Attackers may reach data belonging to adjacent Oracle products deployed in the same environment. Integrity and availability are not affected, but confidentiality impact is rated high.

The EPSS probability for exploitation in the next 30 days is currently low, but the unauthenticated network attack profile makes this vulnerability an attractive target for opportunistic scanning once exploitation details become public.

Root Cause

Oracle has not published the specific root cause in the referenced security alert. The advisory categorizes the flaw within the Installation and Configuration component, which typically handles product setup, provisioning, and inter-service configuration exchange. Based on Oracle's disclosure, the flaw permits access to data without any authentication or user interaction.

Attack Vector

The attack vector is network-based over multiple protocols. An attacker does not need credentials, privileges, or user interaction. Attack complexity is low, meaning the exploitation path is reliable across affected deployments. For technical remediation details, consult the Oracle Security Alert.

No public proof-of-concept code is available, and no verified exploitation code examples have been released. Refer to the vendor advisory for authoritative technical guidance.

Detection Methods for CVE-2026-62535

Indicators of Compromise

Unexpected inbound connections to Oracle Hyperion Infrastructure Technology services from external or non-administrative networks
Unusual data egress volumes from Hyperion application servers
Access to configuration and installation endpoints from unauthenticated sources

Detection Strategies

Inspect Hyperion access logs for requests to Installation and Configuration endpoints originating from unauthenticated sessions
Correlate network telemetry with Hyperion service ports across HTTP, HTTPS, and other supported protocols
Alert on anomalous scanning patterns targeting Oracle Hyperion service banners and known Hyperion URLs

Monitoring Recommendations

Enable verbose logging on Hyperion middleware and forward logs to a centralized SIEM for retention and analytics
Monitor outbound traffic from Hyperion servers to identify data exfiltration patterns
Track process and file access on Hyperion configuration directories for unexpected read activity

How to Mitigate CVE-2026-62535

Immediate Actions Required

Apply the fix documented in Oracle's August 2026 Critical Patch Update as soon as maintenance windows allow
Restrict network access to Oracle Hyperion Infrastructure Technology services using firewall rules and network segmentation
Inventory all Hyperion 11.2.25.0.000 deployments and prioritize internet-exposed instances
Review authentication and access logs for signs of unauthorized data access

Patch Information

Oracle addresses CVE-2026-62535 in the August 2026 security update. Administrators should consult the Oracle Security Alert for the exact patch bundle, prerequisites, and installation procedure applicable to their Hyperion 11.2.25.0.000 environment.

Workarounds

Place Oracle Hyperion Infrastructure Technology behind a VPN or zero-trust access broker until patching completes
Disable or block unused protocols exposed by the Installation and Configuration component
Enforce strict network access control lists limiting reachability to trusted administrative subnets

bash

# Configuration example
# Restrict Hyperion service access to trusted administrative subnet via iptables
iptables -A INPUT -p tcp --dport 19000:19999 -s 10.10.20.0/24 -j ACCEPT
iptables -A INPUT -p tcp --dport 19000:19999 -j DROP