CVE-2026-70754: Oracle Hyperion Disclosure Vulnerability

CVE-2026-70754 Overview

CVE-2026-70754 is an information disclosure vulnerability in Oracle Hyperion Financial Reporting, part of the Oracle Hyperion product family. The flaw affects the Server component in version 11.2.25.0.000. An unauthenticated attacker with network access over HTTP can exploit the vulnerability to gain read access to a subset of data managed by the application. No authentication, user interaction, or elevated privileges are required to trigger the condition.

Critical Impact
Unauthenticated remote attackers can retrieve a subset of Oracle Hyperion Financial Reporting data over HTTP, exposing confidential financial reporting information without leaving standard authentication traces.

Affected Products

Oracle Hyperion Financial Reporting 11.2.25.0.000
Oracle Hyperion (Server component)
Deployments exposing the Hyperion Financial Reporting HTTP interface to untrusted networks

Discovery Timeline

2026-08-18 - CVE-2026-70754 published to the National Vulnerability Database
2026-08-18 - Oracle Security Alert August 2026 references the issue
2026-08-20 - Last updated in NVD database

Technical Details for CVE-2026-70754

Vulnerability Analysis

The vulnerability resides in the Server component of Oracle Hyperion Financial Reporting. It is classified as an information disclosure issue because successful exploitation results in unauthorized read access without affecting integrity or availability. The attack traverses the network and is described by Oracle as easily exploitable, requiring only HTTP access to the target service.

Because the flaw does not require authentication, exposure is driven primarily by network reachability. Organizations that expose Hyperion Financial Reporting to internal user networks or to partner segments should assume broad reachability. The impact is scoped to a subset of accessible data rather than the full dataset, but that subset may still include sensitive financial reporting content.

Root Cause

Oracle has not published detailed root-cause information beyond the advisory metadata. The confidentiality-only impact and the lack of any privilege or interaction requirement are consistent with missing authorization checks on a server-side endpoint that returns reporting data. Refer to the Oracle Security Alert August 2026 for the authoritative advisory.

Attack Vector

Exploitation occurs over the network using HTTP requests directed at the Hyperion Financial Reporting server. The attacker does not need valid credentials or a session. A single crafted HTTP request is sufficient to retrieve exposed data, which makes automated scanning across externally reachable Hyperion deployments a realistic threat model.

No public proof-of-concept, exploit module, or CISA KEV listing is currently associated with this CVE. The EPSS score is 0.316%.

Detection Methods for CVE-2026-70754

Indicators of Compromise

Unauthenticated HTTP requests to Hyperion Financial Reporting endpoints originating from unexpected internal or external source addresses
Anomalous response sizes returned from reporting endpoints to sessions that never completed authentication
Repeated enumeration patterns against Hyperion URLs, particularly outside business hours

Detection Strategies

Enable verbose HTTP access logging on the Hyperion Financial Reporting server and forward logs to a centralized analytics platform
Baseline normal request patterns to reporting endpoints and alert on deviations in volume, source, or user-agent
Correlate web server logs with authentication logs to surface data-returning requests that lack a corresponding authenticated session

Monitoring Recommendations

Monitor egress from Hyperion servers for unusual data transfers to unfamiliar destinations
Track access to reporting APIs by IP reputation and geolocation for internet-exposed instances
Alert on scanner fingerprints such as burst request rates or non-browser user-agents targeting Hyperion paths

How to Mitigate CVE-2026-70754

Immediate Actions Required

Apply the fixes referenced in the Oracle Security Alert August 2026 as soon as the patch cycle allows
Inventory all Hyperion Financial Reporting deployments and confirm which run version 11.2.25.0.000
Restrict network access to Hyperion Financial Reporting to trusted management and user segments only
Remove any direct internet exposure of the Hyperion Financial Reporting HTTP interface

Patch Information

Oracle addressed the issue in the August 2026 Security Alert cycle. Administrators should apply the vendor-supplied patch for Oracle Hyperion Financial Reporting 11.2.25.0.000 and verify the fix version after deployment. Consult the Oracle Security Alert August 2026 for downloads and installation guidance.

Workarounds

Place the Hyperion Financial Reporting server behind a reverse proxy or web application firewall that enforces authentication before requests reach the application
Apply IP allowlists on the load balancer or firewall to limit access to known user subnets
Disable or restrict the affected endpoints if they are not required for business operations until the patch is applied

bash

# Example: restrict inbound HTTP access to Hyperion Financial Reporting
# using iptables to allow only a trusted management subnet
iptables -A INPUT -p tcp --dport 8200 -s 10.10.20.0/24 -j ACCEPT
iptables -A INPUT -p tcp --dport 8200 -j DROP