CVE-2026-83089 Overview
CVE-2026-83089 is an access control vulnerability [CWE-284] in the Oracle Alert product of Oracle E-Business Suite, specifically within the Internal Operations component. The flaw affects supported versions 12.2.3 through 12.2.15. A low-privileged attacker with network access via HTTP can exploit the issue to compromise Oracle Alert. Successful exploitation grants unauthorized creation, deletion, or modification of critical data, plus unauthorized read access to all Oracle Alert accessible data.
Critical Impact
Authenticated remote attackers can read, modify, or delete any data accessible to Oracle Alert, undermining confidentiality and integrity across the E-Business Suite deployment.
Affected Products
- Oracle E-Business Suite 12.2.3 through 12.2.15 (Oracle Alert component)
- Oracle Alert product, Internal Operations component
- Deployments exposing Oracle Alert HTTP interfaces to authenticated users
Discovery Timeline
- 2026-09-15 - CVE-2026-83089 published to the National Vulnerability Database
- 2026-09-17 - Last updated in NVD database
Technical Details for CVE-2026-83089
Vulnerability Analysis
The vulnerability resides in the Oracle Alert product's Internal Operations component within Oracle E-Business Suite. The flaw is categorized under CWE-284 (Improper Access Control), indicating the application fails to enforce authorization boundaries on privileged operations exposed over HTTP. An authenticated attacker with minimal privileges can send crafted HTTP requests to reach functionality that should be restricted. The result is horizontal and vertical access to data managed by Oracle Alert, including read, create, modify, and delete operations. Because Oracle Alert brokers notifications tied to core Oracle E-Business Suite processes, compromise can affect downstream business workflows and integrity of alert-driven automation.
Root Cause
The root cause is improper access control on Oracle Alert's Internal Operations endpoints. The application does not adequately verify that the requesting session holds the authorization required to perform the invoked action. This authorization gap allows low-privileged accounts to execute operations reserved for higher-privileged roles. The EPSS score is 0.392% (percentile 32.925) as of 2026-09-16, reflecting current predicted exploitation likelihood rather than technical difficulty.
Attack Vector
Exploitation requires network access to Oracle Alert over HTTP and a valid low-privileged account. No user interaction is required, and attack complexity is low. The attacker issues HTTP requests to Internal Operations endpoints that lack sufficient authorization checks. Successful requests return or manipulate data outside the caller's intended scope. The vulnerability does not affect availability, but confidentiality and integrity of all Oracle Alert accessible data are impacted.
No public proof-of-concept or verified exploit code is available. See the Oracle Security Alert for authoritative technical details.
Detection Methods for CVE-2026-83089
Indicators of Compromise
- Unexpected HTTP requests to Oracle Alert Internal Operations URLs from low-privileged user sessions
- Oracle E-Business Suite audit records showing create, update, or delete actions on alert definitions by accounts without administrative roles
- Unusual spikes in Oracle Alert activity outside normal business automation windows
Detection Strategies
- Enable and review Oracle E-Business Suite Sign-On and Page Access auditing for the Oracle Alert responsibility
- Correlate web tier access logs against user role assignments to identify authorization anomalies
- Baseline typical Oracle Alert operations per user role and alert on deviations
Monitoring Recommendations
- Forward Oracle E-Business Suite application and web tier logs to a centralized SIEM for continuous inspection
- Monitor FND_LOGINS, FND_UNSUCCESSFUL_LOGINS, and Oracle Alert configuration tables for changes
- Alert on modifications to alert definitions, action sets, and distribution lists performed by non-administrative accounts
How to Mitigate CVE-2026-83089
Immediate Actions Required
- Apply the Oracle Critical Patch Update referenced in the Oracle Security Alert for all affected Oracle E-Business Suite instances
- Inventory Oracle E-Business Suite deployments running versions 12.2.3 through 12.2.15 and prioritize internet-exposed systems
- Review and reduce the number of accounts holding Oracle Alert responsibilities to the minimum required
Patch Information
Oracle addresses this vulnerability through its Critical Patch Update program. Administrators should install the fixes listed in the Oracle Security Alert for September 2026. Verify patch application against the Oracle E-Business Suite patch inventory and re-test alert workflows after deployment.
Workarounds
- Restrict network access to Oracle E-Business Suite HTTP endpoints using a reverse proxy or web application firewall until patches are applied
- Remove the Oracle Alert responsibility from users who do not require it as an interim least-privilege measure
- Enforce strong authentication and session controls on all Oracle E-Business Suite accounts
Refer to the Oracle Security Alert for the authoritative patch matrix and configuration guidance.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.