CVE-2026-62629: Oracle Reports Developer Auth Bypass Flaw

CVE-2026-62629 Overview

CVE-2026-62629 affects the Security and Authentication component of Oracle Reports Developer, part of Oracle Fusion Middleware. The vulnerability allows an unauthenticated remote attacker to compromise the product over HTTP. Exploitation requires no user interaction and no prior privileges on the target system.

Successful attacks can result in unauthorized creation, deletion, or modification of critical data, unauthorized read access to a subset of accessible data, and a complete denial of service against Oracle Reports Developer. Oracle disclosed the issue in its August 2026 security alert cycle.

Critical Impact
An unauthenticated network attacker can modify or destroy data managed by Oracle Reports Developer and trigger a persistent crash of the service.

Affected Products

Oracle Fusion Middleware — Oracle Reports Developer
Oracle Reports Developer version 14.1.2.0.0
Deployments exposing Oracle Reports Developer HTTP endpoints to untrusted networks

Discovery Timeline

2026-08-18 - CVE-2026-62629 published to NVD
2026-08-20 - Last updated in NVD database

Technical Details for CVE-2026-62629

Vulnerability Analysis

The vulnerability resides in the Security and Authentication component of Oracle Reports Developer 14.1.2.0.0. An attacker reaches the vulnerable code path by sending crafted HTTP requests to the Reports Developer service. No credentials, session, or user interaction are required to trigger the flaw.

Exploitation yields high impact on integrity and availability. Attackers gain the ability to create, delete, or modify all data accessible to Oracle Reports Developer. They can also cause a repeatable crash of the service, producing a complete denial of service. Confidentiality impact is limited to a subset of accessible data.

Oracle classifies the issue as easily exploitable. The attack surface includes any Reports Developer instance reachable over HTTP or HTTPS from an attacker-controlled network position.

Root Cause

Oracle's advisory attributes the flaw to the Security and Authentication component but does not publish component-level source details. The behavior is consistent with a missing or improperly enforced authentication check on a request handler that performs privileged data operations. Refer to the Oracle Security Alert for vendor-provided details.

Attack Vector

The attack vector is network-based over HTTP. An unauthenticated attacker sends crafted requests to an exposed Oracle Reports Developer endpoint. The request reaches the vulnerable authentication logic, bypasses expected authorization checks, and executes data-modifying or service-disrupting operations. Because the scope is unchanged and no user interaction is needed, the exploitation chain is a single request-response interaction.

Detection Methods for CVE-2026-62629

Indicators of Compromise

Unexpected HTTP requests to Oracle Reports Developer endpoints from external or non-administrative source IPs
Unauthenticated requests that succeed in performing create, update, or delete operations on report metadata or configuration
Sudden crashes, restarts, or hang states of the Oracle Reports Developer service without a corresponding administrative action
Anomalous request patterns targeting authentication-related URIs of the Reports Developer service

Detection Strategies

Baseline expected clients of Oracle Reports Developer and alert on new source addresses interacting with authentication endpoints
Correlate application logs with service restart events to identify crash-based denial of service patterns
Monitor for successful state-changing HTTP methods (POST, PUT, DELETE) that lack a preceding authenticated session

Monitoring Recommendations

Forward Oracle Fusion Middleware and Reports Developer logs to a centralized SIEM for retention and correlation
Enable HTTP request logging with full URI, method, source IP, and response code fields
Track service availability metrics for Oracle Reports Developer and alert on repeated abnormal terminations

How to Mitigate CVE-2026-62629

Immediate Actions Required

Apply the fixes referenced in the Oracle Security Alert for the August 2026 cycle
Inventory all Oracle Reports Developer 14.1.2.0.0 instances and prioritize internet-exposed systems
Restrict network access to Reports Developer HTTP listeners to trusted management networks until patching completes
Review recent report definitions and configuration data for unauthorized modifications

Patch Information

Oracle addressed CVE-2026-62629 as part of its August 2026 security alert. Administrators should consult the Oracle Security Alert for the specific patch bundles applicable to Oracle Fusion Middleware 14.1.2.0.0. Apply the vendor-provided patch through the standard Oracle patching workflow and validate service functionality after installation.

Workarounds

Place Oracle Reports Developer behind an authenticating reverse proxy or web application firewall that enforces authentication before requests reach the service
Block untrusted network segments from reaching the Reports Developer HTTP port using host and network firewall rules
Disable the Reports Developer service on hosts where it is not actively required until patches are applied

bash

# Example: restrict Oracle Reports Developer HTTP port to a management subnet
# Replace 10.0.10.0/24 with your trusted administrative network
iptables -A INPUT -p tcp --dport 7001 -s 10.0.10.0/24 -j ACCEPT
iptables -A INPUT -p tcp --dport 7001 -j DROP