CVE-2026-62474: Oracle Lease Management Auth Bypass Flaw

CVE-2026-62474 Overview

CVE-2026-62474 is a vulnerability in the Oracle Lease and Finance Management product of Oracle E-Business Suite, specifically within the Lease Authoring component. The flaw affects supported versions 12.2.3 through 12.2.15. A low-privileged attacker with network access over HTTP can exploit the weakness to compromise the application. Successful exploitation allows unauthorized update, insert, or delete access to a subset of accessible data, unauthorized read access to a subset of data, and the ability to cause a partial denial of service. The weakness maps to [CWE-269: Improper Privilege Management].

Critical Impact
Authenticated attackers can modify or read a subset of Oracle Lease and Finance Management data and trigger a partial denial of service over the network.

Affected Products

Oracle E-Business Suite - Oracle Lease and Finance Management version 12.2.3
Oracle E-Business Suite - Oracle Lease and Finance Management versions 12.2.4 through 12.2.14
Oracle E-Business Suite - Oracle Lease and Finance Management version 12.2.15

Discovery Timeline

2026-07-21 - CVE-2026-62474 published to NVD
2026-07-22 - Last updated in NVD database

Technical Details for CVE-2026-62474

Vulnerability Analysis

The vulnerability resides in the Lease Authoring component of Oracle Lease and Finance Management, part of Oracle E-Business Suite. An attacker who already holds a low-privileged account can send crafted HTTP requests to the application and perform actions beyond their intended authorization scope. The impact spans confidentiality, integrity, and availability, but is scoped to a subset of application data rather than the entire environment. Oracle documents the issue in the Oracle Security Alert - July 2026.

Root Cause

The issue is classified under [CWE-269: Improper Privilege Management]. The Lease Authoring component does not correctly enforce privilege boundaries on certain operations. As a result, low-privileged users can perform actions that should require higher privileges, including data modification and partial service disruption.

Attack Vector

Exploitation requires network access via HTTP and a valid low-privileged account on the target Oracle E-Business Suite instance. No user interaction is required, and the attack complexity is low. The scope is unchanged, meaning the impact stays within the vulnerable component. Because Oracle E-Business Suite deployments are frequently exposed to internal networks, insider threats and compromised accounts are the primary exploitation paths.

No public proof-of-concept exploit is currently available, and the vulnerability is not listed in the CISA Known Exploited Vulnerabilities catalog.

Detection Methods for CVE-2026-62474

Indicators of Compromise

Unexpected create, update, or delete operations against Lease Authoring records performed by accounts that do not normally interact with those objects.
HTTP requests to Oracle Lease and Finance Management endpoints originating from low-privileged user sessions that produce elevated database activity.
Partial service degradation or transaction failures within the Lease and Finance Management module without corresponding infrastructure issues.

Detection Strategies

Enable Oracle E-Business Suite audit logging for the Lease Authoring component and forward events to a centralized logging platform for correlation.
Baseline normal user activity for Lease and Finance Management roles and alert on deviations in transaction volume, object access, or off-hours activity.
Correlate database UPDATE, INSERT, and DELETE events against Lease Authoring tables with application-tier session identity to detect privilege boundary violations.

Monitoring Recommendations

Monitor HTTP access logs on the Oracle E-Business Suite application tier for repeated requests targeting Lease Authoring URLs from a single low-privileged session.
Track authentication and role assignment changes in Oracle E-Business Suite to identify accounts that may be leveraged for exploitation.
Review database session audit trails for privilege escalation patterns tied to the OKL (Oracle Lease) schema.

How to Mitigate CVE-2026-62474

Immediate Actions Required

Apply the fixes documented in the Oracle Security Alert - July 2026 Critical Patch Update to all affected Oracle E-Business Suite instances.
Inventory all Oracle Lease and Finance Management deployments running versions 12.2.3 through 12.2.15 and prioritize patching for internet-adjacent systems.
Review and reduce accounts with access to the Lease Authoring component to enforce least privilege.

Patch Information

Oracle addressed CVE-2026-62474 in the July 2026 Critical Patch Update. Administrators should download and apply the patch bundle referenced in the Oracle Security Alert for E-Business Suite 12.2.3 through 12.2.15. Validate patch application in a non-production environment before promoting changes to production.

Workarounds

Restrict network access to Oracle E-Business Suite application URLs so that only authorized internal networks can reach Lease Authoring endpoints.
Temporarily remove Lease Authoring responsibilities from users who do not require them until the patch is applied.
Increase audit log retention and review frequency for the Lease and Finance Management module during the exposure window.

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# Configuration example
# Review the Oracle Security Alert - July 2026 for authoritative patch guidance:
# https://www.oracle.com/security-alerts/cpujul2026.html