CVE-2026-62606 Overview
CVE-2026-62606 is an information disclosure vulnerability in the Oracle Hyperion Calculation Manager component of Oracle Hyperion. The flaw resides in the Security component of version 11.2.25.0.000. A low-privileged attacker with network access via HTTP can exploit the weakness to read a subset of data accessible to Oracle Hyperion Calculation Manager. Exploitation is rated as difficult, requiring specific conditions beyond the attacker's control. The vulnerability affects only confidentiality, with no impact on integrity or availability. Oracle addressed the issue in its August 2026 Critical Patch Update advisory.
Critical Impact
Successful exploitation grants unauthorized read access to a subset of Oracle Hyperion Calculation Manager data over the network.
Affected Products
- Oracle Hyperion Calculation Manager 11.2.25.0.000
- Oracle Hyperion (Security component)
Discovery Timeline
- 2026-08-18 - CVE-2026-62606 published to NVD
- 2026-08-20 - Last updated in NVD database
Technical Details for CVE-2026-62606
Vulnerability Analysis
The vulnerability affects the Security component of Oracle Hyperion Calculation Manager, an application used for designing and managing business rules for financial consolidation and planning. The flaw permits an authenticated attacker with low privileges to retrieve information they are not authorized to access. The impact is bounded to confidentiality, exposing a limited subset of Calculation Manager data.
Exploitation requires the attacker to already hold a valid low-privileged account. Additional conditions must also be satisfied, which explains the high attack complexity rating. No integrity modification or availability disruption results from a successful attack.
The EPSS score for this issue is 0.23%, placing it in the 14th percentile of vulnerabilities by predicted exploitation likelihood.
Root Cause
Oracle's advisory categorizes the defect under the Security component of Calculation Manager. The precise weakness is not publicly detailed, but the impact profile indicates an access control or authorization gap that fails to enforce data segregation for authenticated users. Attackers can query the application over HTTP and receive data outside their authorized scope.
Attack Vector
The attack vector is network-based over HTTP. An attacker must authenticate to the Calculation Manager interface with a low-privileged account and then issue crafted requests to access restricted data. The advisory notes the exploitation path is difficult, suggesting timing, configuration, or protocol-level conditions must align for the attack to succeed.
No verified proof-of-concept code is publicly available. Refer to the Oracle Critical Patch Update Advisory - August 2026 for vendor-supplied technical context.
Detection Methods for CVE-2026-62606
Indicators of Compromise
- Unusual HTTP request patterns from low-privileged Hyperion user accounts targeting Calculation Manager endpoints.
- Access log entries showing repeated authenticated requests to resources outside a user's normal role scope.
- Elevated volumes of read operations against Calculation Manager objects from a single session.
Detection Strategies
- Enable and centralize Oracle Hyperion Calculation Manager application and web server logs for correlation.
- Baseline typical user query behavior and alert on deviations by low-privileged accounts.
- Correlate authentication events with data access patterns to identify authorization anomalies.
Monitoring Recommendations
- Monitor HTTP traffic to Calculation Manager URIs for authenticated sessions requesting sensitive resources.
- Track failed authorization checks and repeated access attempts to protected data objects.
- Review Hyperion audit logs on a scheduled cadence for unexpected reads by non-administrative accounts.
How to Mitigate CVE-2026-62606
Immediate Actions Required
- Apply the patches released in the Oracle August 2026 Critical Patch Update to affected Hyperion Calculation Manager deployments.
- Inventory all instances of Oracle Hyperion Calculation Manager version 11.2.25.0.000 in the environment.
- Restrict network access to Calculation Manager to trusted internal networks and authenticated users only.
- Review Hyperion user roles and remove unnecessary low-privileged accounts.
Patch Information
Oracle addressed CVE-2026-62606 in the August 2026 Critical Patch Update. Administrators should consult the Oracle Security Alert Advisory for the specific patch bundle and installation guidance for Oracle Hyperion 11.2.25.0.000.
Workarounds
- Place Calculation Manager behind a reverse proxy or web application firewall that enforces additional authentication and rate limiting.
- Enforce the principle of least privilege by auditing and reducing role assignments in Hyperion Shared Services.
- Segment the Hyperion environment from general corporate network access to limit attacker reachability.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
