CVE-2026-62490: Oracle Contracts Integration Data Leak

CVE-2026-62490 Overview

CVE-2026-62490 is an information disclosure vulnerability in the Oracle Contracts Integration product of Oracle E-Business Suite, within the Internal Operations component. Oracle disclosed the issue in the July 2026 Critical Patch Update. Supported versions 12.2.3 through 12.2.15 are affected.

A low-privileged attacker with network access over HTTP can exploit the flaw. Successful exploitation can result in unauthorized access to critical data or complete access to all Oracle Contracts Integration accessible data. The weakness is classified under [CWE-200] Exposure of Sensitive Information to an Unauthorized Actor.

Critical Impact
Authenticated attackers can read confidential contract data across the Oracle Contracts Integration module, exposing sensitive business information.

Affected Products

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

Discovery Timeline

2026-07-21 - CVE-2026-62490 published to NVD as part of Oracle's July 2026 Critical Patch Update
2026-07-22 - Last updated in NVD database

Technical Details for CVE-2026-62490

Vulnerability Analysis

CVE-2026-62490 resides in the Internal Operations component of Oracle Contracts Integration. The flaw permits a low-privileged user, authenticated to the E-Business Suite, to reach data that should require higher authorization. Oracle marks the issue as difficult to exploit, which suggests that specific conditions or non-default configurations must be present.

The vulnerability impacts confidentiality only. It does not modify data or affect availability of the service. Attackers reaching the Contracts Integration endpoints over HTTP can retrieve records tied to contracts, counterparties, pricing terms, or internal operations metadata.

Oracle E-Business Suite deployments are commonly internet-exposed through reverse proxies or load balancers. Any account with valid E-Business Suite credentials becomes a potential launch point for exploitation.

Root Cause

The root cause maps to [CWE-200], Exposure of Sensitive Information to an Unauthorized Actor. The Internal Operations component fails to enforce authorization checks consistently before returning contract-related data. The precise code path has not been published by Oracle.

Attack Vector

The attack vector is network-based HTTP traffic to the Oracle E-Business Suite application tier. The attacker must hold a low-privilege session in the suite. No user interaction is required. The scope remains unchanged, so exploitation does not cross a security boundary into another component.

Exploitation code is not publicly available. The EPSS probability stands well below one percent, reflecting low observed exploitation activity at disclosure.

Detection Methods for CVE-2026-62490

Indicators of Compromise

Unusual volumes of HTTP GET requests from low-privileged user accounts targeting Contracts Integration URLs under the E-Business Suite application path.
Access to Internal Operations endpoints by user accounts that have no functional responsibility for contract data.
Anomalous session activity outside business hours from accounts tied to Contracts Integration roles.

Detection Strategies

Enable Oracle E-Business Suite Sign-On Audit and Page Access Tracking to record which users are hitting Contracts Integration pages.
Correlate application-tier access logs with database audit logs to identify accounts reading contract tables without a matching business workflow.
Baseline the request patterns of low-privileged accounts and alert on deviations toward Internal Operations URIs.

Monitoring Recommendations

Forward Apache/OHS access logs and Oracle database audit trails to a central log platform for correlation.
Monitor authentication events for credential stuffing or brute force activity that could seed low-privilege access needed for exploitation.
Track outbound data volumes from the E-Business Suite application tier to detect bulk data extraction.

How to Mitigate CVE-2026-62490

Immediate Actions Required

Apply the July 2026 Oracle Critical Patch Update for E-Business Suite 12.2 as documented in the Oracle Security Alert July 2026.
Inventory all Oracle E-Business Suite 12.2.3 through 12.2.15 instances and confirm patch level before returning them to normal operations.
Audit low-privileged accounts that have any access to Contracts Integration and remove entitlements that are not required.

Patch Information

Oracle released fixes for CVE-2026-62490 in the July 2026 Critical Patch Update. Administrators should apply the corresponding E-Business Suite 12.2 patchset. Refer to the Oracle Security Alert July 2026 for patch identifiers and installation prerequisites.

Workarounds

Restrict network reachability of the Oracle Contracts Integration endpoints to trusted internal networks and VPN users only.
Enforce multi-factor authentication on all E-Business Suite user accounts to raise the cost of obtaining the low-privilege foothold required for exploitation.
Review and tighten responsibilities and menu access within E-Business Suite so that Internal Operations pages are gated behind least-privilege role assignments.

bash

# Configuration example: restrict Contracts Integration URIs at the Oracle HTTP Server tier
# Add to httpd.conf or a dedicated config file loaded by OHS
<Location /OA_HTML/OKC>
    Require ip 10.0.0.0/8
    Require ip 192.168.0.0/16
</Location>