CVE-2026-70749 Overview
CVE-2026-70749 affects the Server component of Oracle Hyperion Financial Reporting version 11.2.25.0.000. The flaw allows an unauthenticated attacker with network access over HTTP to compromise the application. Successful exploitation results in full takeover of Oracle Hyperion Financial Reporting, impacting confidentiality, integrity, and availability. Oracle rates the issue as high severity, though the attack complexity is high, requiring specific preconditions to exploit reliably. The vulnerability was disclosed in Oracle's August 2026 Critical Patch Update advisory.
Critical Impact
An unauthenticated remote attacker who successfully exploits this vulnerability can achieve full takeover of Oracle Hyperion Financial Reporting, exposing sensitive financial reporting data and enabling manipulation of reporting outputs.
Affected Products
- Oracle Hyperion Financial Reporting 11.2.25.0.000
- Oracle Hyperion (Server component)
- Deployments exposing Hyperion Financial Reporting over HTTP
Discovery Timeline
- 2026-08-18 - CVE-2026-70749 published to NVD
- 2026-08-20 - Last updated in NVD database
Technical Details for CVE-2026-70749
Vulnerability Analysis
CVE-2026-70749 resides in the Server component of Oracle Hyperion Financial Reporting. The vulnerability is reachable over the network via HTTP and does not require authentication or user interaction. However, exploitation requires the attacker to overcome preconditions outside the attacker's direct control, giving the flaw a high attack complexity rating.
Oracle's advisory classifies the outcome as complete takeover of the Hyperion Financial Reporting instance. This indicates that a successful attack yields control equivalent to the application service context, allowing the attacker to read, modify, or destroy financial reporting data. Hyperion is commonly deployed in enterprise finance environments, where compromise directly affects regulatory reporting integrity.
The EPSS score for CVE-2026-70749 is 0.376%, reflecting a relatively low near-term probability of observed exploitation. No public proof-of-concept, exploit code, or CISA KEV listing exists at this time.
Root Cause
Oracle has not published a detailed root-cause analysis in the advisory. The vulnerability is scoped to the Server component of Hyperion Financial Reporting and is triggered through HTTP-facing functionality. Full technical details are restricted to Oracle's Critical Patch Update Advisory.
Attack Vector
The attack vector is network-based over HTTP. An attacker sends crafted requests to the Hyperion Financial Reporting server without prior authentication. Because the CVSS vector indicates high attack complexity, the attacker likely needs specific server state, configuration, or timing conditions to complete the exploit chain and achieve takeover.
No verified public exploit code exists. See the Oracle Security Alert for authoritative technical details.
Detection Methods for CVE-2026-70749
Indicators of Compromise
- Unexpected administrative or configuration changes within Hyperion Financial Reporting
- New or modified user accounts, roles, or scheduled reporting jobs created without change-management approval
- Anomalous outbound connections originating from the Hyperion Server host
- Unusual HTTP requests to Hyperion Financial Reporting endpoints from untrusted network segments
Detection Strategies
- Inspect web server and application logs for malformed or unusually structured HTTP requests targeting Hyperion Financial Reporting endpoints
- Correlate authentication, session, and error events on the Hyperion Server to identify unauthenticated request bursts
- Baseline normal Hyperion process behavior and alert on child-process creation, script interpreters, or shell invocations spawned by the Hyperion service account
Monitoring Recommendations
- Forward Hyperion application, web tier, and OS logs to a centralized SIEM for retention and correlation
- Monitor egress traffic from Hyperion servers, which typically do not initiate outbound internet connections
- Enable file integrity monitoring on Hyperion configuration directories and reporting templates
How to Mitigate CVE-2026-70749
Immediate Actions Required
- Apply the August 2026 Oracle Critical Patch Update for Hyperion Financial Reporting as soon as feasible
- Inventory all Hyperion Financial Reporting 11.2.25.0.000 deployments, including test and disaster-recovery instances
- Restrict network access to Hyperion Financial Reporting HTTP endpoints to trusted internal networks only
- Review Hyperion administrative accounts and audit recent configuration changes for signs of unauthorized activity
Patch Information
Oracle addressed CVE-2026-70749 in the August 2026 Critical Patch Update. Administrators should consult the Oracle Security Alert for the specific patch identifiers and installation prerequisites applicable to Hyperion Financial Reporting 11.2.25.0.000.
Workarounds
- Place Hyperion Financial Reporting behind a reverse proxy or web application firewall that restricts access to authenticated users on trusted networks
- Block inbound HTTP access to Hyperion Financial Reporting from the public internet at the perimeter firewall
- Segment the Hyperion server tier from general user VLANs to limit exposure until patching completes
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
