CVE-2026-70917 Overview
CVE-2026-70917 affects the Security component of Oracle Hyperion Financial Management version 11.2.25.0.000. The vulnerability allows an unauthenticated attacker with local logon access to the infrastructure hosting Oracle Hyperion Financial Management to compromise confidentiality. Successful exploitation grants unauthorized read access to a subset of data managed by the application. The issue is categorized under CWE-200: Exposure of Sensitive Information to an Unauthorized Actor. Oracle disclosed the flaw in the Oracle Security Alert CSPUAug2026.
Critical Impact
Unauthenticated local attackers can read a subset of Oracle Hyperion Financial Management data, exposing sensitive financial information.
Affected Products
- Oracle Hyperion Financial Management 11.2.25.0.000
- Component: Security
- Product family: Oracle Hyperion
Discovery Timeline
- 2026-08-18 - CVE-2026-70917 published to the National Vulnerability Database
- 2026-08-22 - Last updated in NVD database
Technical Details for CVE-2026-70917
Vulnerability Analysis
The vulnerability resides in the Security component of Oracle Hyperion Financial Management. An attacker with local logon access to the host infrastructure can trigger the flaw without authenticating to the application itself. Exploitation yields unauthorized read access to a subset of Hyperion Financial Management data.
The issue maps to CWE-200, indicating that sensitive information becomes accessible to actors outside the intended trust boundary. Because Hyperion Financial Management handles consolidated financial data, close-cycle reporting, and regulatory disclosures, unauthorized read access can expose material non-public information. The EPSS probability of 0.16% indicates that active exploitation in the wild is currently unlikely.
Root Cause
Oracle has not published detailed root cause analysis in the public advisory. The vulnerability is described as an information exposure issue within the Security component, meaning that authorization or access-control logic fails to properly restrict access to a portion of application data when the attacker is present on the underlying infrastructure.
Attack Vector
The attack vector is local. The attacker must possess valid logon rights to the operating system, container, or virtual machine that runs Oracle Hyperion Financial Management. No application-level credentials are required, and no user interaction is needed. The scope is unchanged, and the impact is limited to confidentiality; integrity and availability are not affected.
See the Oracle Security Alert CSPUAug2026 for vendor-provided technical context.
Detection Methods for CVE-2026-70917
Indicators of Compromise
- Unexpected interactive or remote shell logons to servers hosting Oracle Hyperion Financial Management.
- Access to Hyperion configuration files, data directories, or process memory by accounts that do not perform Hyperion administration.
- Anomalous read operations against Hyperion data stores originating from local OS accounts rather than the application service account.
Detection Strategies
- Monitor and alert on logon events (Windows Event ID 4624, Linux auth.log) for Hyperion Financial Management hosts, focusing on non-administrative accounts.
- Enable file system auditing on Hyperion installation directories and database export paths to identify unauthorized read access.
- Correlate process activity with the Hyperion service account to detect out-of-band processes reading application data.
Monitoring Recommendations
- Forward OS, application, and audit logs from Hyperion hosts to a central SIEM for behavioral analysis.
- Baseline normal administrative activity on Hyperion servers and alert on deviations such as new local sessions during off-hours.
- Track privileged group membership changes on the underlying infrastructure to detect footholds that enable local access.
How to Mitigate CVE-2026-70917
Immediate Actions Required
- Apply the patch documented in the Oracle Security Alert CSPUAug2026 as soon as change windows permit.
- Inventory all Oracle Hyperion Financial Management deployments and confirm whether they run version 11.2.25.0.000.
- Restrict interactive and remote logon rights on Hyperion hosts to a minimal set of administrators.
Patch Information
Oracle addressed CVE-2026-70917 in the August 2026 Critical Security Patch Update Advisory. Administrators should review the Oracle Security Alert CSPUAug2026 for the specific patch bundle, prerequisites, and installation instructions for Hyperion Financial Management 11.2.25.0.000.
Workarounds
- Enforce least privilege on the Hyperion host operating system and remove unnecessary local accounts.
- Segment Hyperion infrastructure into a dedicated administrative network reachable only through jump hosts and multi-factor authentication.
- Enable host-based auditing and file integrity monitoring on Hyperion installation and data directories until patching is complete.
# Example: restrict interactive logon on a Linux Hyperion host
# Limit SSH access to a dedicated admin group
sudo groupadd hyperion-admins
sudo usermod -aG hyperion-admins <admin-user>
echo 'AllowGroups hyperion-admins' | sudo tee -a /etc/ssh/sshd_config
sudo systemctl restart sshd
# Audit read access to Hyperion data directories (auditd)
sudo auditctl -w /opt/Oracle/Middleware/user_projects/epmsystem1 -p r -k hyperion_read
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
