CVE-2026-62543 Overview
CVE-2026-62543 is a critical vulnerability in the Oracle Hyperion Infrastructure Technology product of Oracle Hyperion, specifically within the Installation and Configuration component. The affected supported version is 11.2.25.0.000. An unauthenticated attacker with network access via HTTP can exploit this flaw to fully compromise the affected system. Successful exploitation results in complete takeover of Oracle Hyperion Infrastructure Technology, impacting confidentiality, integrity, and availability. Oracle disclosed the vulnerability in its August 2026 Critical Patch Update advisory.
Critical Impact
Unauthenticated remote attackers can take over Oracle Hyperion Infrastructure Technology deployments over HTTP without user interaction.
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-2026-62543 published to NVD
- 2026-08-20 - Last updated in NVD database
Technical Details for CVE-2026-62543
Vulnerability Analysis
The vulnerability resides in the Installation and Configuration component of Oracle Hyperion Infrastructure Technology. An attacker reaches the vulnerable code path over HTTP without authentication or user interaction. Successful exploitation grants full control of the Hyperion Infrastructure Technology instance, which typically underpins Oracle's enterprise performance management stack.
A compromise at this layer exposes financial reporting data, planning workflows, and downstream Hyperion services. Because the Infrastructure Technology tier manages installation, configuration, and shared services, attackers can pivot to connected Hyperion applications, service accounts, and integrated data sources.
Root Cause
Oracle's advisory identifies the flaw within the Installation and Configuration component but does not disclose the specific CWE or technical mechanism. Attack surface characteristics indicate an exposed HTTP handler that fails to enforce authentication or input validation before executing privileged operations. Consult the Oracle Security Alert for vendor-provided technical context.
Attack Vector
The attack vector is network-based over HTTP. An attacker sends crafted requests to an exposed Hyperion Infrastructure Technology endpoint without credentials. No user interaction is required, and the attack complexity is low, making internet-facing or lateral-network-accessible deployments viable targets.
No verified proof-of-concept code is publicly available at this time. Refer to the Oracle Security Alert for authoritative technical details.
Detection Methods for CVE-2026-62543
Indicators of Compromise
- Unexpected HTTP requests to Hyperion Infrastructure Technology installation and configuration endpoints from external or unusual internal sources
- New or modified administrative accounts, services, or scheduled tasks on Hyperion hosts
- Anomalous outbound connections from Hyperion servers to unknown IP addresses
- Unauthorized changes to Hyperion shared services configuration files or registry entries
Detection Strategies
- Inspect web server and application logs for unauthenticated HTTP requests targeting Hyperion configuration URIs
- Monitor process creation on Hyperion hosts for shells, scripting engines, or LOLBins spawned by Hyperion service accounts
- Correlate authentication and file integrity events across Hyperion Infrastructure Technology components
Monitoring Recommendations
- Enable verbose HTTP access logging on all Hyperion front-end and middleware nodes
- Alert on privilege changes and service restarts within the Hyperion environment
- Continuously baseline outbound traffic from Hyperion servers and flag deviations
How to Mitigate CVE-2026-62543
Immediate Actions Required
- Apply the Oracle Critical Patch Update fixes referenced in the August 2026 advisory to all Hyperion Infrastructure Technology 11.2.25.0.000 deployments
- Restrict network access to Hyperion HTTP endpoints to trusted management networks only
- Audit Hyperion service accounts, administrative users, and recent configuration changes for signs of tampering
- Isolate any internet-exposed Hyperion Infrastructure Technology hosts until patched
Patch Information
Oracle released fixes in the August 2026 Critical Patch Update. Administrators should review the Oracle Security Alert for patch download instructions, prerequisite updates, and supported upgrade paths for Oracle Hyperion Infrastructure Technology.
Workarounds
- Place Hyperion Infrastructure Technology behind a reverse proxy or WAF that enforces authentication on installation and configuration endpoints
- Block inbound HTTP access to Hyperion management interfaces from untrusted networks using firewall or ACL rules
- Disable or restrict unused Hyperion configuration endpoints where operationally feasible until patching completes
# Example: restrict Hyperion HTTP endpoints to a management CIDR (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
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
