CVE-2026-83129: Oracle Sales Authentication Bypass Vulnerability

CVE-2026-83129 Overview

CVE-2026-83129 is an improper access control vulnerability [CWE-284] in the Oracle Sales 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 this vulnerability without user interaction. Successful exploitation results in unauthorized access to critical data or complete read access to all Oracle Sales accessible data. The vulnerability carries a scope change, meaning attacks may significantly impact additional Oracle products beyond Oracle Sales itself.

Critical Impact
Authenticated attackers can compromise confidentiality across Oracle Sales and connected components, exposing sensitive customer, sales, and business data.

Affected Products

Oracle E-Business Suite Oracle Sales version 12.2.3
Oracle E-Business Suite Oracle Sales versions 12.2.4 through 12.2.14
Oracle E-Business Suite Oracle Sales version 12.2.15

Discovery Timeline

2026-09-15 - CVE-2026-83129 published to NVD
2026-09-16 - Last updated in NVD database

Technical Details for CVE-2026-83129

Vulnerability Analysis

The vulnerability exists in the Internal Operations component of Oracle Sales within Oracle E-Business Suite. It is classified as an Improper Access Control weakness [CWE-284]. An attacker with a valid low-privileged account can send crafted HTTP requests over the network to reach functionality that should be restricted. The flaw allows the attacker to bypass access boundaries and retrieve data that the account should not be authorized to view.

The scope change indicator means the impact extends beyond Oracle Sales itself. Adjacent Oracle E-Business Suite components sharing trust or session context with Oracle Sales may also expose confidential data. The impact is limited to confidentiality; the vulnerability does not modify data or degrade availability.

Root Cause

The root cause is missing or insufficient authorization checks in the Internal Operations component. Server-side logic fails to properly validate that the requesting user has permission to access the targeted data or operation. This aligns with CWE-284 (Improper Access Control), where the software does not restrict or incorrectly restricts access from authorized actors.

Attack Vector

Exploitation requires network access over HTTP to the Oracle E-Business Suite deployment and a low-privileged authenticated account. No user interaction is required. The attacker sends crafted HTTP requests to endpoints exposed by the Internal Operations component of Oracle Sales, bypassing authorization enforcement to read data belonging to other users or connected products.

No public proof-of-concept exploit is available at the time of publication, and the vulnerability is not listed in the CISA Known Exploited Vulnerabilities catalog. The EPSS score is 0.355%. Refer to the Oracle Security Alert CSPUSEP2026 for the vendor-provided technical details.

Detection Methods for CVE-2026-83129

Indicators of Compromise

Unusual HTTP requests from low-privileged Oracle E-Business Suite accounts targeting Internal Operations endpoints in Oracle Sales.
Spikes in read operations or data export activity from accounts that historically perform limited actions.
Access to Oracle Sales data records outside the normal territory, organization, or role scope of the authenticated user.

Detection Strategies

Audit Oracle E-Business Suite access logs (FND_LOGINS, FND_LOGIN_RESPONSIBILITIES) for anomalous session activity tied to Oracle Sales URLs.
Correlate HTTP access logs from the Oracle HTTP Server tier with application-layer user identity and responsibility assignments.
Baseline expected access patterns per responsibility and alert on deviations touching Internal Operations endpoints.

Monitoring Recommendations

Forward Oracle E-Business Suite application and HTTP tier logs into a centralized analytics platform for continuous review.
Monitor outbound data volumes from Oracle Sales sessions to identify large or repeated confidential data reads.
Track privileged and low-privileged account behavior separately, flagging low-privileged sessions that access broad data sets.

How to Mitigate CVE-2026-83129

Immediate Actions Required

Apply the fixes referenced in the Oracle Security Alert CSPUSEP2026 to all Oracle E-Business Suite instances running Oracle Sales versions 12.2.3 through 12.2.15.
Inventory all Oracle E-Business Suite deployments to confirm affected versions and prioritize internet-exposed environments.
Review and tighten Oracle Sales responsibility assignments to remove unnecessary low-privilege accounts.

Patch Information

Oracle has published remediation guidance in the Oracle Security Alert CSPUSEP2026. Administrators should download and apply the associated patches through My Oracle Support and follow Oracle's documented Critical Patch Update procedures for Oracle E-Business Suite 12.2.x. Validate patch application against Oracle's post-install checks before returning systems to production.

Workarounds

Restrict network access to Oracle E-Business Suite HTTP endpoints using firewalls, reverse proxies, or VPN gateways until patches are applied.
Disable or remove unused Oracle Sales responsibilities and low-privileged accounts that are not required for business operations.
Enable enhanced auditing on the Internal Operations component to detect exploitation attempts while remediation is in progress.

bash

# Configuration example: restrict access to Oracle E-Business Suite via reverse proxy
# Example iptables rule limiting HTTP access to trusted subnets only
iptables -A INPUT -p tcp --dport 8000 -s 10.0.0.0/8 -j ACCEPT
iptables -A INPUT -p tcp --dport 8000 -j DROP