CVE-2026-70826 Overview
CVE-2026-70826 affects the Oracle Hyperion Financial Management product within Oracle Hyperion, specifically in the Security component. The supported version affected is 11.2.25.0.000. The flaw allows a low-privileged attacker with network access via HTTP to compromise the confidentiality of data managed by Oracle Hyperion Financial Management.
Successful exploitation can result in unauthorized access to critical data or complete access to all data accessible through Oracle Hyperion Financial Management. The vulnerability does not affect integrity or availability, and no user interaction is required for exploitation.
Critical Impact
A low-privileged authenticated attacker can gain unauthorized read access to all data stored within Oracle Hyperion Financial Management over the network.
Affected Products
- Oracle Hyperion Financial Management
- Component: Security
- Version: 11.2.25.0.000
Discovery Timeline
- 2026-08-18 - CVE-2026-70826 published to NVD
- 2026-08-20 - Last updated in NVD database
Technical Details for CVE-2026-70826
Vulnerability Analysis
CVE-2026-70826 resides in the Security component of Oracle Hyperion Financial Management. Oracle classifies the issue as easily exploitable, meaning an attacker requires only baseline knowledge and readily available tooling to leverage it. The vulnerability enables unauthorized data disclosure without compromising the integrity or availability of the target system.
The scope remains unchanged, meaning the exploited component and the impacted component are the same. Successful attacks yield complete confidentiality impact against data managed by the Hyperion Financial Management instance. The EPSS probability is 0.371% at the 30th percentile, indicating limited near-term exploitation likelihood at the time of publication.
Root Cause
Oracle's advisory attributes the flaw to a defect in the Security component of Oracle Hyperion Financial Management. Because Oracle Critical Patch Updates disclose limited technical detail, the precise implementation weakness (for example, broken access control or missing authorization enforcement) is not publicly documented. The behavior described by Oracle is consistent with an authorization or access control gap that permits low-privileged accounts to read data outside their intended scope.
Attack Vector
The attack vector is network-based over HTTP. An attacker must hold valid low-privileged credentials on the target Hyperion Financial Management instance. No user interaction is required, and the attack complexity is low. Once authenticated, the attacker can issue crafted HTTP requests to the vulnerable endpoints exposed by the Security component to read sensitive financial data.
No public proof-of-concept exploit and no exploitation in the wild have been reported. Refer to the Oracle Security Alert for vendor-supplied technical context.
Detection Methods for CVE-2026-70826
Indicators of Compromise
- Unexpected HTTP requests to Hyperion Financial Management Security component endpoints originating from low-privileged service or user accounts.
- Access log entries showing successful data reads by accounts that historically do not query financial data sets.
- Sudden increases in outbound data volume from Hyperion application servers to internal or external hosts.
Detection Strategies
- Baseline normal query volume and data-access patterns per Hyperion user role, then alert on statistical deviations.
- Correlate authentication events with subsequent data-access operations to surface privilege boundary crossings.
- Enable and forward Oracle Hyperion audit logs to a centralized analytics platform for cross-session review.
Monitoring Recommendations
- Monitor the Hyperion Financial Management web tier for unusual HTTP request patterns targeting Security component URIs.
- Track authentication attempts from low-privileged accounts followed by bulk data retrieval operations.
- Review Oracle HTTP Server and WebLogic access logs daily for anomalies tied to Hyperion endpoints.
How to Mitigate CVE-2026-70826
Immediate Actions Required
- Apply the fixes provided in the Oracle Critical Patch Update Advisory referenced in the Oracle Security Alert.
- Inventory all Oracle Hyperion Financial Management deployments to confirm exposure of version 11.2.25.0.000.
- Rotate credentials for low-privileged Hyperion accounts and enforce the principle of least privilege.
Patch Information
Oracle addressed CVE-2026-70826 in its August 2026 Critical Patch Update cycle. Administrators should download and apply the relevant patch bundle from Oracle Support and validate installation across all Hyperion Financial Management nodes. Consult the Oracle Security Alert for full applicability and installation guidance.
Workarounds
- Restrict network access to the Hyperion Financial Management web tier using firewall or reverse-proxy allowlists.
- Require VPN or zero-trust network access for all Hyperion sessions until patching is complete.
- Disable or suspend unused low-privileged Hyperion accounts to reduce the attack surface.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
