CVE-2026-61313: Oracle Hyperion Privilege Escalation Flaw

CVE-2026-61313 Overview

CVE-2026-61313 is a vulnerability in the Security component of Oracle Hyperion Calculation Manager, part of the Oracle Hyperion product family. The affected supported version is 11.2.25.0.000. The flaw allows a high-privileged attacker with local logon access to the infrastructure running Oracle Hyperion Calculation Manager to compromise the product. Although the vulnerability resides in Calculation Manager, successful exploitation results in a scope change and can impact additional products. Attackers gain unauthorized access to critical data and can modify a subset of accessible data.

Critical Impact
Local high-privileged attackers can obtain complete read access to all Oracle Hyperion Calculation Manager data and partial write access, with impact extending beyond the vulnerable component through scope change.

Affected Products

Oracle Hyperion Calculation Manager 11.2.25.0.000
Oracle Hyperion (parent product family)
Security component of Oracle Hyperion Calculation Manager

Discovery Timeline

2026-08-18 - CVE-2026-61313 published to NVD
2026-08-20 - Last updated in NVD database

Technical Details for CVE-2026-61313

Vulnerability Analysis

The vulnerability affects the Security component of Oracle Hyperion Calculation Manager. Oracle classifies it as easily exploitable by an attacker who already holds high privileges and can log on to the infrastructure hosting the application. Exploitation results in a scope change, meaning the security impact reaches components beyond the vulnerable Calculation Manager itself.

Successful attacks yield full confidentiality compromise of data accessible to Calculation Manager. Attackers also gain limited integrity impact, allowing unauthorized update, insert, or delete operations against some accessible data. Availability is not affected. The confidentiality-and-integrity impact profile combined with local access requirements suggests a flaw in access control enforcement or trust boundary handling within the Security component.

Root Cause

Oracle has not published root-cause details or a CWE mapping for CVE-2026-61313. Based on the CVSS metrics, the scope change indicates that the vulnerable code path executes with authority extending beyond the Calculation Manager security boundary. Consult the Oracle Security Alert for authoritative technical details as they become available.

Attack Vector

The attack vector is local. An attacker must authenticate to the infrastructure where Oracle Hyperion Calculation Manager runs and hold high privileges before exploitation. No user interaction is required. Because the scope changes on successful exploitation, the attacker escalates influence into adjacent Oracle Hyperion components and their data stores. No public proof-of-concept, exploit code, or in-the-wild exploitation has been reported at publication time.

Detection Methods for CVE-2026-61313

Indicators of Compromise

Unexpected read or export of Calculation Manager rule sets, business rules, or artifacts by privileged accounts outside routine change windows.
Anomalous update, insert, or delete operations against Calculation Manager databases performed by accounts with administrative roles.
Interactive logons or service account sessions on the Calculation Manager host that do not correlate with approved administrative activity.

Detection Strategies

Audit privileged access to the Calculation Manager application server and its underlying host operating system.
Correlate application-layer security events with host authentication logs to identify privileged sessions that trigger cross-component data access.
Baseline normal Calculation Manager API and database activity, then alert on deviations involving cross-scope data reads.

Monitoring Recommendations

Forward Oracle Hyperion audit logs, Windows or Linux security logs, and database audit trails to a centralized analytics platform.
Monitor changes to Calculation Manager role assignments, security provisioning, and Shared Services user directories.
Track service account credential use across Hyperion components to identify lateral movement that follows scope change exploitation.

How to Mitigate CVE-2026-61313

Immediate Actions Required

Apply the fixes referenced in the Oracle Security Alert covering Oracle Hyperion Calculation Manager 11.2.25.0.000.
Inventory all Oracle Hyperion Calculation Manager deployments and confirm patch status across development, test, and production environments.
Restrict interactive and remote logon rights on Calculation Manager hosts to a minimal set of administrators.

Patch Information

Oracle addresses this vulnerability in its August 2026 Critical Patch Update cycle. Refer to the Oracle Security Alert for patch identifiers, download locations, and version-specific guidance. Apply the patch in accordance with Oracle Hyperion upgrade procedures and validate service functionality afterward.

Workarounds

Enforce least privilege on the Calculation Manager host, reducing the number of accounts that meet the high-privilege prerequisite.
Segment Hyperion infrastructure on a restricted management network to limit which administrators can reach the host locally.
Enable and review host-based auditing on Calculation Manager servers so that privileged actions leave a reviewable trail until patching is complete.

bash

# Configuration example - restrict interactive logon on the Calculation Manager host
# Linux: limit SSH access to a dedicated administrative group
sudo groupadd hyperion-admins
sudo usermod -aG hyperion-admins <approved_admin>
echo 'AllowGroups hyperion-admins' | sudo tee -a /etc/ssh/sshd_config
sudo systemctl restart sshd

# Enable auditd rules to track privileged access to the Calculation Manager install path
sudo auditctl -w /opt/Oracle/Middleware/EPMSystem11R1 -p rwxa -k hyperion_calcmgr