CVE-2026-62517: Oracle Production Scheduling Disclosure Flaw

CVE-2026-62517 Overview

CVE-2026-62517 affects the Oracle Production Scheduling product within Oracle E-Business Suite, specifically the Internal Operations component. The flaw impacts supported versions 12.2.3 through 12.2.15. An unauthenticated attacker with network access via HTTP can exploit the weakness, though exploitation is difficult and requires interaction from a user other than the attacker. Successful exploitation can result in unauthorized access to critical data or complete access to all Oracle Production Scheduling accessible data. The underlying weakness is categorized as [CWE-345] Insufficient Verification of Data Authenticity.

Critical Impact
Successful exploitation exposes confidentiality of Oracle Production Scheduling data, with no direct impact on integrity or availability.

Affected Products

Oracle E-Business Suite - Oracle Production Scheduling 12.2.3 through 12.2.15
Component: Internal Operations
Protocol: HTTP

Discovery Timeline

2026-07-21 - CVE CVE-2026-62517 published to NVD
2026-07-22 - Last updated in NVD database
July 2026 - Addressed in Oracle Critical Patch Update July 2026

Technical Details for CVE-2026-62517

Vulnerability Analysis

The vulnerability resides in the Internal Operations component of Oracle Production Scheduling, part of Oracle E-Business Suite. The weakness maps to [CWE-345] Insufficient Verification of Data Authenticity, indicating that the application does not sufficiently verify the origin or authenticity of data it processes. An attacker can leverage this to influence application behavior in a way that leaks confidential data.

Exploitation requires network access over HTTP and human interaction from a user other than the attacker. This pattern typically involves an attacker crafting a request or artifact that a legitimate user must open, click, or otherwise process. The attack complexity is high, meaning conditions beyond the attacker's control must be met for reliable exploitation.

Root Cause

The root cause is insufficient verification of data authenticity within the Internal Operations component. When the application accepts data without adequately validating its source, an attacker can supply crafted input that the application trusts. This trust misplacement allows attacker-influenced data to reach code paths that expose sensitive information belonging to Oracle Production Scheduling.

Attack Vector

The attack vector is network-based over HTTP. The attacker does not require authentication or prior privileges on the target. Exploitation depends on a victim user performing an action that triggers the vulnerable code path. Only confidentiality is affected; the vulnerability does not permit modification of data or disruption of service. Refer to the Oracle Critical Patch Update July 2026 for vendor technical details.

Detection Methods for CVE-2026-62517

Indicators of Compromise

Unexpected HTTP requests to Oracle Production Scheduling endpoints originating from external or untrusted sources
Anomalous outbound data flows from Oracle E-Business Suite hosts following user interaction with untrusted content
Web server access logs showing crafted parameters targeting Internal Operations endpoints

Detection Strategies

Inspect HTTP traffic to Oracle Production Scheduling for requests that bypass typical authentication flows or reference internal operation resources
Correlate user activity logs with Production Scheduling data access patterns to identify unexpected data reads
Alert on Oracle E-Business Suite processes accessing large volumes of scheduling data outside normal business workflows

Monitoring Recommendations

Enable verbose application logging on Oracle Production Scheduling and forward logs to a centralized SIEM for correlation
Monitor for HTTP responses from Internal Operations endpoints that return larger-than-expected payloads
Track user sessions that trigger Production Scheduling API calls immediately after receiving external links or documents

How to Mitigate CVE-2026-62517

Immediate Actions Required

Apply the fixes provided in the Oracle Critical Patch Update July 2026 to all Oracle E-Business Suite instances running versions 12.2.3 through 12.2.15
Inventory Oracle Production Scheduling deployments and prioritize internet-exposed systems for patching
Review Oracle E-Business Suite access logs for suspicious HTTP activity since the July 2026 CPU release

Patch Information

Oracle released fixes for CVE-2026-62517 as part of the Critical Patch Update published in July 2026. Administrators should consult the Oracle Critical Patch Update July 2026 advisory for patch identifiers, prerequisites, and installation guidance specific to Oracle E-Business Suite 12.2.x.

Workarounds

Restrict HTTP access to Oracle Production Scheduling to trusted internal networks using firewall rules or reverse proxy allowlists
Train users to avoid interacting with untrusted links or documents that may trigger requests to Production Scheduling endpoints
Deploy a web application firewall in front of Oracle E-Business Suite to filter anomalous requests to Internal Operations paths

bash

# Example: restrict HTTP access to Oracle Production Scheduling via iptables
iptables -A INPUT -p tcp --dport 8000 -s 10.0.0.0/8 -j ACCEPT
iptables -A INPUT -p tcp --dport 8000 -j DROP