CVE-2026-62553 Overview
CVE-2026-62553 affects the Oracle Hyperion Infrastructure Technology product of Oracle Hyperion, specifically the Installation and Configuration component. The affected supported version is 11.2.25.0.000. A low-privileged attacker with logon access to the infrastructure where Oracle Hyperion Infrastructure Technology executes can exploit this flaw to compromise the product. Successful exploitation results in unauthorized access to critical data or complete access to all Oracle Hyperion Infrastructure Technology accessible data. The vulnerability impacts confidentiality only, with no direct impact on integrity or availability. Oracle disclosed the issue in the Oracle Security Alert CSPUAUG2026.
Critical Impact
Local, low-privileged attackers can read all data accessible to Oracle Hyperion Infrastructure Technology, exposing sensitive enterprise performance management data.
Affected Products
- Oracle Hyperion Infrastructure Technology 11.2.25.0.000
- Component: Installation and Configuration
- Oracle Hyperion product family
Discovery Timeline
- 2026-08-18 - CVE-2026-62553 published to NVD
- 2026-08-20 - Last updated in NVD database
- 2026-08-20 - EPSS score published at 0.145% (percentile 4.285)
Technical Details for CVE-2026-62553
Vulnerability Analysis
The vulnerability resides in the Installation and Configuration component of Oracle Hyperion Infrastructure Technology. Exploitation requires local access and low privileges on the host running the software, and no user interaction is needed. The flaw is classified as an information disclosure issue, where an authenticated local actor can retrieve data that should be restricted to privileged accounts. Because the confidentiality impact is rated High while integrity and availability are unaffected, the vulnerability functions as an unauthorized data-read primitive rather than a code execution or tampering vector.
Root Cause
Oracle's advisory does not publicly disclose the underlying defect. Based on the component (Installation and Configuration) and the local, low-privilege attack profile, the root cause is consistent with improper access control or insecure permissions on configuration artifacts produced during installation. Files, environment settings, or credential material generated by the installer are likely readable by accounts that should not have such visibility.
Attack Vector
An attacker must first obtain interactive logon access to the server where Oracle Hyperion Infrastructure Technology executes. From that foothold, the attacker leverages standard file-system or configuration-read operations to access data exposed by the flawed component. No network access is required, and exploitation complexity is low. Refer to the Oracle Security Alert CSPUAUG2026 for vendor-specific details.
No public proof-of-concept code is available for CVE-2026-62553. The vulnerability is described here in prose because no verified exploit artifacts have been released.
Detection Methods for CVE-2026-62553
Indicators of Compromise
- Unexpected read access to Oracle Hyperion installation directories or configuration files by non-administrative local accounts.
- Local logon events on Hyperion servers by accounts outside the expected administrator or service-account inventory.
- Abnormal file-access patterns targeting installer output, deployment scripts, or configuration stores.
Detection Strategies
- Audit file-system access control lists on Oracle Hyperion Infrastructure Technology directories and flag world-readable or overly permissive entries.
- Enable operating-system audit policies to log read access on Hyperion configuration files and correlate with the invoking user identity.
- Baseline expected local accounts on Hyperion hosts and alert on interactive or remote-desktop sessions from accounts outside that baseline.
Monitoring Recommendations
- Ingest Windows Security or Linux auditd logs from Hyperion servers into a centralized logging platform for retention and correlation.
- Monitor for privilege-changes, group-membership modifications, and new local account creation on Hyperion infrastructure.
- Review Oracle Hyperion application logs for authentication and configuration-read events that deviate from established operational baselines.
How to Mitigate CVE-2026-62553
Immediate Actions Required
- Apply the patches referenced in the Oracle Security Alert CSPUAUG2026 to Oracle Hyperion Infrastructure Technology 11.2.25.0.000.
- Restrict interactive and remote logon rights on Hyperion servers to a documented, minimal set of administrative accounts.
- Rotate any credentials, keys, or secrets that may have been exposed through the affected configuration surfaces.
Patch Information
Oracle addressed CVE-2026-62553 in the August 2026 Critical Security Patch Update. Administrators should consult the Oracle Security Alert CSPUAUG2026 for the specific patch bundle applicable to Oracle Hyperion Infrastructure Technology 11.2.25.0.000 and follow Oracle's documented deployment procedure in a non-production environment before production rollout.
Workarounds
- Tighten file-system permissions on Oracle Hyperion installation, configuration, and log directories to allow read access only to required service accounts.
- Enforce least privilege for all local accounts on Hyperion hosts and remove unnecessary logon rights.
- Segment Hyperion infrastructure on a restricted management network to limit which users and systems can reach the host.
- Enable host-based auditing of sensitive configuration files until the vendor patch is applied.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
