CVE-2026-101824: Oracle E-Business Suite Auth Bypass

CVE-2026-101824 Overview

CVE-2026-101824 is an access control vulnerability in the Document Management and Collaboration product of Oracle E-Business Suite. The flaw resides in the Attachments component and affects supported versions 12.2.3 through 12.2.15. A low-privileged attacker with network access over HTTP can exploit the issue, but exploitation requires interaction from a user other than the attacker. The vulnerability maps to [CWE-284: Improper Access Control] and carries a scope change, meaning successful attacks can affect products beyond the vulnerable component. Oracle addressed the issue in the Oracle Critical Patch Update published in October 2026.

Critical Impact
Successful exploitation allows unauthorized creation, deletion, or modification of critical data, and full read access to all Document Management and Collaboration data.

Affected Products

Oracle E-Business Suite Document Management and Collaboration 12.2.3 through 12.2.15
Oracle E-Business Suite Attachments component
Downstream Oracle E-Business Suite products reachable via scope change

Discovery Timeline

2026-10-20 - CVE-2026-101824 published to the National Vulnerability Database (NVD)
2026-10-22 - CVE-2026-101824 last updated in NVD

Technical Details for CVE-2026-101824

Vulnerability Analysis

The vulnerability resides in the Attachments component of Oracle E-Business Suite Document Management and Collaboration. An authenticated attacker with low privileges can send crafted HTTP requests that abuse the component to read, create, delete, or modify attachment data outside of their authorization boundary. Exploitation requires a separate user to interact with attacker-supplied content, such as opening a crafted link or attachment. The scope change indicates the attack surface extends beyond the vulnerable module and can impact additional Oracle E-Business Suite products that trust the Attachments subsystem.

Root Cause

The underlying weakness is improper access control [CWE-284]. The Attachments component does not sufficiently enforce authorization checks on actions performed through HTTP requests, allowing an authenticated user to escalate what they can read or modify. Because attachments are commonly linked across multiple E-Business Suite modules, inadequate enforcement at this layer propagates to any product that consumes or renders those attachments.

Attack Vector

The attack vector is network-based over HTTP. An attacker authenticates to the E-Business Suite environment with any valid low-privileged account, then issues requests to the Document Management and Collaboration endpoints. The attacker lures a second user, often a privileged business user, into interacting with the crafted content. Once the victim renders or acts on the attachment, the attacker gains unauthorized access to confidential data or the ability to alter critical records. Availability is not directly affected, but integrity and confidentiality impacts are high.

No verified public proof-of-concept is available. Refer to the Oracle Critical Patch Update advisory for vendor-supplied technical details.

Detection Methods for CVE-2026-101824

Indicators of Compromise

Unexpected creation, modification, or deletion of attachment records by low-privileged accounts in FND_ATTACHED_DOCUMENTS and related tables
HTTP requests to Document Management and Collaboration endpoints originating from accounts without a documented business need
Audit log entries showing attachment access that crosses module or responsibility boundaries

Detection Strategies

Enable and review Oracle E-Business Suite Sign-On Audit and Page Access Tracking for Attachments-related URLs
Correlate HTTP access logs on the Oracle HTTP Server with application-level attachment events to identify anomalous activity
Baseline normal attachment upload and retrieval behavior per responsibility, and alert on deviations

Monitoring Recommendations

Forward Oracle HTTP Server, concurrent manager, and FND audit logs to a centralized SIEM for correlation
Monitor privileged user sessions that follow attachment interactions initiated by low-privileged users
Track outbound traffic from the EBS middle tier that could indicate exfiltration triggered by attachment handling

How to Mitigate CVE-2026-101824

Immediate Actions Required

Apply the October 2026 Oracle Critical Patch Update for Oracle E-Business Suite 12.2 as the authoritative fix
Inventory all E-Business Suite environments running versions 12.2.3 through 12.2.15 and prioritize internet-exposed instances
Restrict network access to the E-Business Suite middle tier to trusted corporate networks and VPN users
Review responsibilities and roles that grant access to the Attachments component and remove unnecessary assignments

Patch Information

Oracle released fixes as part of the October 2026 Critical Patch Update. Administrators should review the Oracle Critical Patch Update advisory for the specific patch identifiers, prerequisites, and installation steps for Oracle E-Business Suite 12.2.

Workarounds

Place the E-Business Suite middle tier behind a web application firewall configured to block anomalous requests to attachment endpoints
Enforce user awareness guidance so staff do not open unexpected attachments or links shared through EBS
Temporarily disable or tightly scope the Attachments functionality for responsibilities that do not require it until patches are deployed