CVE-2026-46910: Oracle JD Edwards Auth Bypass Flaw

CVE-2026-46910 Overview

CVE-2026-46910 is a critical vulnerability in Oracle JD Edwards EnterpriseOne Tools within the Enterprise Infrastructure Security component. The flaw affects supported versions 9.2.0.0 through 9.2.26.2. An unauthenticated attacker with network access via HTTP can exploit the issue without user interaction. Successful exploitation leads to unauthorized access to critical data and the ability to cause a complete denial of service through hangs or repeatable crashes. The vulnerability is classified under CWE-20: Improper Input Validation.

Critical Impact
Unauthenticated network attackers can read all JD Edwards EnterpriseOne Tools accessible data and trigger a complete denial of service against the application.

Affected Products

Oracle JD Edwards EnterpriseOne Tools 9.2.0.0 through 9.2.26.2
Deployments exposing the Enterprise Infrastructure Security component over HTTP
Environments running unpatched JD Edwards EnterpriseOne Tools releases as of June 2026

Discovery Timeline

2026-06-17 - CVE-2026-46910 published to NVD
2026-06-17 - Oracle releases security alert (CPU June 2026)
2026-06-17 - Last updated in NVD database

Technical Details for CVE-2026-46910

Vulnerability Analysis

The vulnerability resides in the Enterprise Infrastructure Security component of Oracle JD Edwards EnterpriseOne Tools. The product fails to properly validate input received over HTTP, allowing remote attackers to influence application behavior without authentication. The flaw impacts confidentiality and availability, granting attackers full read access to data handled by the product and the ability to crash or hang the service. Integrity is not impacted according to the CVSS vector published by Oracle.

Root Cause

The issue is rooted in improper input validation [CWE-20] within HTTP-facing logic of the Enterprise Infrastructure Security component. Malformed or unexpected request data is processed without sufficient sanity checks. This allows attacker-controlled input to reach sensitive code paths that read protected data or place the service into an unrecoverable state. Oracle has not publicly disclosed the specific routine or parser at fault.

Attack Vector

Exploitation requires only network reachability to the JD Edwards EnterpriseOne Tools HTTP interface. The attacker does not need credentials, privileges, or user interaction. A single crafted HTTP request can either exfiltrate critical data or trigger a hang/crash that constitutes complete denial of service. Because JD Edwards EnterpriseOne Tools commonly underpins enterprise resource planning workflows, downtime carries operational consequences for finance, supply chain, and HR processes.

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. Refer to the Oracle Security Alert June 2026 for vendor technical details.

Detection Methods for CVE-2026-46910

Indicators of Compromise

Unexpected HTTP requests targeting JD Edwards EnterpriseOne Tools endpoints with malformed parameters or oversized payloads
Application crashes, hangs, or restart loops in JD Edwards EnterpriseOne Tools server processes
Outbound transfers of large volumes of JD Edwards data immediately following anomalous HTTP traffic
Authentication logs showing data access without preceding successful login events

Detection Strategies

Inspect web server and reverse proxy logs for unauthenticated HTTP requests reaching Enterprise Infrastructure Security URIs
Correlate HTTP 5xx response spikes with JD Edwards process restarts to identify DoS attempts
Baseline normal request patterns to the JD Edwards EnterpriseOne Tools HTTP listener and alert on deviations
Apply network IDS signatures published by Oracle and threat intelligence providers as they become available

Monitoring Recommendations

Forward JD Edwards EnterpriseOne Tools application, web, and OS logs to a centralized SIEM for correlation
Monitor service availability with synthetic transactions to detect hangs introduced by exploitation attempts
Track egress data volumes from JD Edwards servers to detect bulk data exfiltration
Enable alerting on configuration or binary changes within the JD Edwards installation directory

How to Mitigate CVE-2026-46910

Immediate Actions Required

Apply the Oracle Critical Patch Update from the June 2026 security alert to all affected JD Edwards EnterpriseOne Tools instances
Inventory all JD Edwards EnterpriseOne Tools deployments and confirm versions against the affected range 9.2.0.0-9.2.26.2
Restrict network access to the JD Edwards HTTP interface to trusted management networks until patches are deployed
Increase logging verbosity on JD Edwards web tiers to capture exploitation attempts during the remediation window

Patch Information

Oracle published fixes in the June 2026 Critical Patch Update. Administrators must upgrade JD Edwards EnterpriseOne Tools beyond version 9.2.26.2 using the patches referenced in the Oracle Security Alert June 2026. Apply patches in a test environment first, validate ERP business workflows, then roll forward to production. There is no vendor-supported configuration alternative to patching.

Workarounds

Place the JD Edwards EnterpriseOne Tools HTTP listener behind a web application firewall configured to drop malformed requests to the Enterprise Infrastructure Security component
Enforce network segmentation so only authenticated VPN or bastion users can reach the HTTP interface
Disable internet-facing exposure of JD Edwards EnterpriseOne Tools endpoints not required for business operations
Schedule frequent service health checks to detect and recover from DoS conditions while patching is in progress

bash

# Example: restrict access to JD Edwards HTTP listener using iptables
# Replace 10.0.0.0/24 with your trusted administrative subnet
iptables -A INPUT -p tcp --dport 8080 -s 10.0.0.0/24 -j ACCEPT
iptables -A INPUT -p tcp --dport 8080 -j DROP