CVE-2026-83076: Oracle HR Intelligence DOS Vulnerability

CVE-2026-83076 Overview

CVE-2026-83076 is an access control vulnerability [CWE-284] in the Oracle HR Intelligence product of Oracle E-Business Suite. The flaw resides in the Internal Operations component and affects supported versions 12.2.3 through 12.2.15. A low-privileged attacker with network access via HTTP can exploit the weakness, though the attack complexity is high. Successful exploitation allows unauthorized creation, deletion, or modification of critical HR Intelligence data. The same flaw enables a complete denial-of-service condition through repeatable crashes or hangs of the Oracle HR Intelligence service.

Critical Impact
Attackers with valid low-privileged credentials can tamper with HR Intelligence data and cause a complete denial of service against the affected Oracle E-Business Suite component.

Affected Products

Oracle E-Business Suite - Oracle HR Intelligence 12.2.3
Oracle E-Business Suite - Oracle HR Intelligence versions 12.2.4 through 12.2.14
Oracle E-Business Suite - Oracle HR Intelligence 12.2.15

Discovery Timeline

2026-09-15 - CVE-2026-83076 published to NVD
2026-09-16 - Last updated in NVD database

Technical Details for CVE-2026-83076

Vulnerability Analysis

CVE-2026-83076 stems from improper access control [CWE-284] within the Internal Operations component of Oracle HR Intelligence. The affected functionality permits authenticated requests over HTTP without enforcing the authorization checks required for sensitive operations. An attacker holding low-privileged application credentials can leverage this gap to reach code paths that modify or destroy data intended to be restricted. The same exposed code paths can be driven into failure conditions, producing hangs or repeatable crashes that render HR Intelligence unavailable. Oracle assigns this issue a high attack complexity, indicating that exploitation requires specific conditions or preparatory steps beyond a simple authenticated request. The absence of a confidentiality impact indicates the flaw is scoped to integrity and availability rather than data disclosure.

Root Cause

The root cause is missing or insufficient authorization enforcement on privileged operations within the HR Intelligence Internal Operations component. Because the component trusts a caller's authenticated session for actions that should require additional entitlement checks, low-privileged users can invoke functions reserved for administrative roles. Oracle has not published implementation-level details for this CVE.

Attack Vector

Exploitation requires network reachability to the Oracle E-Business Suite HTTP endpoint and valid low-privileged credentials. The attacker crafts HTTP requests to the vulnerable HR Intelligence functionality and abuses the authorization gap to write, delete, or trigger error conditions. No user interaction is required and the scope remains unchanged, limiting impact to the vulnerable component. Refer to the Oracle Security Alert CSPUSEP2026 for the vendor's technical guidance.

Detection Methods for CVE-2026-83076

Indicators of Compromise

Unexpected creation, modification, or deletion of records in Oracle HR Intelligence data stores by non-administrative accounts.
Repeated HR Intelligence service crashes, hangs, or restart events without a corresponding operational change.
HTTP requests from low-privileged users targeting Internal Operations endpoints outside normal usage patterns.

Detection Strategies

Enable Oracle E-Business Suite audit logging for HR Intelligence transactions and review changes performed by low-privileged accounts.
Correlate application error logs and process restart events with authenticated HTTP request logs to identify DoS attempts.
Baseline normal HR Intelligence usage per user role and alert on deviations, particularly write operations from read-only roles.

Monitoring Recommendations

Forward Oracle E-Business Suite application, database, and HTTP server logs to a centralized analytics platform for retention and correlation.
Monitor session activity for privilege abuse patterns, including repeated failed authorization events preceding successful actions.
Alert on service availability metrics for HR Intelligence to detect crash-based denial of service quickly.

How to Mitigate CVE-2026-83076

Immediate Actions Required

Apply the fixes provided in Oracle Security Alert CSPUSEP2026 to all Oracle E-Business Suite deployments running HR Intelligence versions 12.2.3 through 12.2.15.
Inventory user accounts with access to HR Intelligence and remove entitlements that are not required for business function.
Restrict network access to the Oracle E-Business Suite HTTP endpoints to trusted networks and VPN users until patching completes.

Patch Information

Oracle addressed CVE-2026-83076 in the security update referenced by Oracle Security Alert CSPUSEP2026. Administrators should review the alert for the exact patch bundle, prerequisites, and application instructions for E-Business Suite 12.2.x environments. Apply the update in a test environment before promoting to production.

Workarounds

Reduce the population of low-privileged users with access to the HR Intelligence Internal Operations component until patches are deployed.
Place a web application firewall or reverse proxy in front of Oracle E-Business Suite to rate-limit and inspect HTTP traffic to HR Intelligence endpoints.
Increase monitoring frequency of HR Intelligence data integrity and service availability to shorten detection time for exploitation attempts.

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