CVE-2026-62541: Oracle Hyperion Infrastructure RCE Flaw

CVE-2026-62541 Overview

CVE-2026-62541 is a critical vulnerability in the Oracle Hyperion Infrastructure Technology product of Oracle Hyperion, affecting 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 Oracle Hyperion Infrastructure Technology. Oracle rates the issue with a CVSS 3.1 base score of 9.8, reflecting impacts to confidentiality, integrity, and availability. The EPSS score is 0.358% (29.071 percentile) as of 2026-08-20.

Critical Impact
Successful exploitation results in complete takeover of Oracle Hyperion Infrastructure Technology by a remote, unauthenticated attacker over HTTP.

Affected Products

Oracle Hyperion Infrastructure Technology 11.2.25.0.000
Oracle Hyperion (Installation and Configuration component)

Discovery Timeline

2026-08-18 - CVE-2026-62541 published to NVD
2026-08-20 - Last updated in NVD database

Technical Details for CVE-2026-62541

Vulnerability Analysis

The vulnerability resides in the Installation and Configuration component of Oracle Hyperion Infrastructure Technology. Oracle describes the flaw as easily exploitable, requiring no authentication, no user interaction, and no elevated privileges. An attacker only needs network reachability to the HTTP interface of the Hyperion Infrastructure Technology service. Successful exploitation results in a complete compromise of the target, giving the attacker control over the affected Hyperion deployment. Because Hyperion is commonly used for enterprise performance management and financial consolidation, a compromised host may expose sensitive financial data and downstream systems.

Root Cause

Oracle's advisory attributes the issue to the Installation and Configuration component of Hyperion Infrastructure Technology version 11.2.25.0.000. Oracle has not published detailed root-cause information beyond the affected component and CVSS metrics. Consult the Oracle Security Advisory for the definitive technical description.

Attack Vector

The attack vector is network-based over HTTP. An unauthenticated remote attacker sends crafted HTTP requests to the exposed Hyperion Infrastructure Technology service. The scope is unchanged, but confidentiality, integrity, and availability impacts are all rated high. No verified proof-of-concept code is publicly available at the time of publication.

// No verified proof-of-concept code is available.
// See the Oracle Security Advisory for technical details:
// https://www.oracle.com/security-alerts/cspuaug2026.html

Detection Methods for CVE-2026-62541

Indicators of Compromise

Unexpected HTTP requests to Oracle Hyperion Infrastructure Technology endpoints from external or unusual internal sources.
New administrative accounts, scheduled tasks, or services on Hyperion hosts running version 11.2.25.0.000.
Outbound connections from Hyperion servers to unknown IPs or file-sharing destinations.

Detection Strategies

Inventory all Oracle Hyperion Infrastructure Technology instances and flag any running version 11.2.25.0.000.
Inspect HTTP access logs for anomalous request patterns, oversized payloads, or requests targeting installation and configuration endpoints.
Correlate process, file, and network telemetry on Hyperion hosts to identify post-exploitation behavior such as command execution or lateral movement.

Monitoring Recommendations

Continuously monitor Hyperion application and web server logs and forward them to a centralized SIEM for correlation.
Alert on new local accounts, service installations, or credential dumping activity on Hyperion servers.
Track egress traffic from Hyperion hosts and baseline expected destinations to detect deviations.

How to Mitigate CVE-2026-62541

Immediate Actions Required

Apply the security fixes referenced in the Oracle Critical Patch Update Advisory to affected Hyperion Infrastructure Technology deployments.
Restrict network access to Hyperion HTTP interfaces so that only authorized management networks can reach them.
Audit Hyperion hosts running 11.2.25.0.000 for signs of prior compromise before patching.

Patch Information

Oracle addressed CVE-2026-62541 in its August 2026 Critical Patch Update. Administrators should apply the fixes listed in the Oracle Security Advisory to Oracle Hyperion Infrastructure Technology 11.2.25.0.000 as soon as possible.

Workarounds

Place Hyperion Infrastructure Technology behind a reverse proxy or web application firewall that enforces authentication and blocks anomalous requests.
Segment Hyperion servers into a restricted network zone reachable only from trusted administrative hosts.
Disable or firewall unused HTTP-exposed installation and configuration endpoints until patches are applied.

bash

# Example: restrict inbound HTTP access to Hyperion to a management subnet
# (adapt interface and subnet to your environment)
iptables -A INPUT -p tcp --dport 19000 -s 10.10.20.0/24 -j ACCEPT
iptables -A INPUT -p tcp --dport 19000 -j DROP