CVE-2026-83113: Oracle Quality Information Disclosure Flaw

CVE-2026-83113 Overview

CVE-2026-83113 is a high-severity vulnerability in the Oracle Quality 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 over HTTP can exploit this issue to compromise Oracle Quality. Successful exploitation can lead to unauthorized read access to all Oracle Quality accessible data and unauthorized update, insert, or delete access to a subset of that data.

Critical Impact
Authenticated network-based attackers can read all Oracle Quality data and modify a subset of it, threatening confidentiality and integrity of manufacturing quality records.

Affected Products

Oracle E-Business Suite — Oracle Quality 12.2.3
Oracle E-Business Suite — Oracle Quality versions 12.2.4 through 12.2.14
Oracle E-Business Suite — Oracle Quality 12.2.15

Discovery Timeline

2026-09-15 - CVE-2026-83113 published to the National Vulnerability Database
2026-09-16 - Last updated in NVD database

Technical Details for CVE-2026-83113

Vulnerability Analysis

The vulnerability resides in the Internal Operations component of Oracle Quality, a module of Oracle E-Business Suite used to manage manufacturing quality plans, collection elements, and specifications. Oracle describes the issue as easily exploitable over the network via HTTP by an authenticated attacker with low privileges. No user interaction is required, and the impact remains within the vulnerable component's scope.

Exploitation yields high confidentiality impact and low integrity impact. An attacker can gain complete access to all data reachable through Oracle Quality, and can perform unauthorized insert, update, or delete operations against a subset of that data. Availability is not affected. The EPSS model currently scores the likelihood of exploitation at 0.303% (approximately the 23rd percentile).

Root Cause

Oracle has not publicly disclosed the root cause or the specific weakness class. No CWE identifier is assigned in the NVD entry. Based on the disclosed impact profile — authenticated network attacker, low complexity, high confidentiality and low integrity impact — the flaw is consistent with a broken access control or improper authorization issue in an HTTP-facing Oracle Quality interface.

Attack Vector

The attack vector is network-based over HTTP. The attacker must hold a valid low-privileged account on the target Oracle E-Business Suite instance. Once authenticated, the attacker issues crafted HTTP requests to the Oracle Quality Internal Operations component to reach data or operations that should be restricted by authorization checks.

No public proof-of-concept or exploit code has been published, and the vulnerability is not listed on the CISA Known Exploited Vulnerabilities catalog. Technical details are restricted to Oracle's advisory; see the Oracle Security Alert CSPUSEP2026 for the vendor's authoritative description.

Detection Methods for CVE-2026-83113

Indicators of Compromise

Unexpected HTTP requests from low-privileged Oracle E-Business Suite user sessions to Oracle Quality Internal Operations URLs.
Unexplained changes, inserts, or deletions in Oracle Quality tables performed by accounts that should not have write privileges.
Bulk read activity against Oracle Quality data by user accounts outside the normal quality-engineering role set.

Detection Strategies

Review Oracle E-Business Suite application and database audit logs for Oracle Quality access patterns that do not match the authenticated user's role.
Correlate web-tier HTTP access logs with database-level DML activity against Oracle Quality objects to surface authorization mismatches.
Baseline normal Oracle Quality API and page usage per role, then alert on deviations that involve Internal Operations endpoints.

Monitoring Recommendations

Forward Oracle E-Business Suite web-tier, concurrent manager, and database audit logs to a centralized analytics platform for retention and correlation.
Enable fine-grained auditing on sensitive Oracle Quality tables to capture insert, update, and delete operations with the invoking application user.
Monitor for privilege changes and new account creation on Oracle E-Business Suite that could precede exploitation attempts.

How to Mitigate CVE-2026-83113

Immediate Actions Required

Apply the Oracle fix referenced in Oracle Security Alert CSPUSEP2026 to all affected Oracle E-Business Suite instances running Oracle Quality versions 12.2.3 through 12.2.15.
Inventory Oracle E-Business Suite environments and confirm the deployed Oracle Quality version before scheduling patch windows.
Review and tighten role assignments so that only required users retain access to Oracle Quality.

Patch Information

Oracle addresses this vulnerability through the security fix documented in the CSPUSEP2026 alert. Administrators should download the corresponding patch from My Oracle Support, apply it in a non-production environment first, and validate Oracle Quality functionality before rolling out to production. Follow standard Oracle E-Business Suite patching procedures, including autoconfig and any post-install steps referenced in the patch README.

Workarounds

Restrict network access to Oracle E-Business Suite web tiers so that only trusted internal networks or VPN clients can reach the application.
Reduce the number of accounts with any level of Oracle Quality access until the patch is applied.
Increase logging verbosity on the Oracle Quality Internal Operations component to improve post-incident forensics if exploitation is suspected.

bash

# Configuration example: restrict inbound HTTP access to the EBS web tier
# using host-based firewall rules (Linux iptables illustrative example)
iptables -A INPUT -p tcp --dport 8000 -s 10.0.0.0/8 -j ACCEPT
iptables -A INPUT -p tcp --dport 8000 -j DROP