CVE-2026-62627: Oracle Reports Developer Auth Bypass Flaw

CVE-2026-62627 Overview

CVE-2026-62627 is a vulnerability in the Oracle Reports Developer component of Oracle Fusion Middleware. The flaw resides in the Security and Authentication subsystem of version 12.2.1.19.0. A low-privileged attacker with network access via HTTP can exploit the issue to compromise Oracle Reports Developer. The vulnerability has a scope change, meaning successful exploitation can affect additional products beyond Reports Developer itself. Attackers can gain unauthorized access to critical data and perform unauthorized update, insert, or delete operations on some accessible data. Oracle addressed the issue in the August 2026 Critical Patch Update.

Critical Impact
Successful exploitation grants unauthorized access to all Oracle Reports Developer accessible data and unauthorized write access to a subset of that data, with impact extending to other Oracle Fusion Middleware components due to scope change.

Affected Products

Oracle Fusion Middleware
Oracle Reports Developer 12.2.1.19.0
Oracle Reports Developer Security and Authentication component

Discovery Timeline

2026-08-18 - CVE-2026-62627 published to NVD
2026-08-20 - Last updated in NVD database

Technical Details for CVE-2026-62627

Vulnerability Analysis

CVE-2026-62627 affects the Security and Authentication component of Oracle Reports Developer. The flaw is exploitable over HTTP by a low-privileged authenticated attacker. Exploitation requires meeting specific preconditions, which raises attack complexity, but the vulnerability does not require user interaction. The scope change indicates that a successful attack against Reports Developer can pivot to affect data and functionality in other Oracle Fusion Middleware components sharing the trust boundary. Confidentiality impact is high, allowing full read access to accessible data. Integrity impact is limited, permitting modification of a subset of that data. Availability is not affected.

Root Cause

Oracle has not disclosed the technical root cause. The issue resides within the Security and Authentication component of Oracle Reports Developer 12.2.1.19.0. Refer to the Oracle Security Alert for vendor-supplied details.

Attack Vector

The attacker must have low-level privileges in Oracle Reports Developer and network access via HTTP to the affected service. The attacker sends crafted HTTP requests to the authentication or security-handling endpoint. Because of the scope change, the request can influence resources managed by components outside Reports Developer.

// No verified public exploitation code is available.
// See the Oracle Security Alert for authoritative technical detail:
// https://www.oracle.com/security-alerts/cspuaug2026.html

Detection Methods for CVE-2026-62627

Indicators of Compromise

Unexpected HTTP requests to Oracle Reports Developer authentication endpoints from low-privileged accounts.
Unusual cross-component data access patterns in Oracle Fusion Middleware audit logs following Reports Developer activity.
Unauthorized modifications, inserts, or deletes recorded against Reports Developer accessible datasets.

Detection Strategies

Enable and review Oracle Fusion Middleware audit logging for the Reports Developer Security and Authentication component.
Correlate authenticated Reports Developer sessions with subsequent access to data owned by other Fusion Middleware components.
Alert on anomalous HTTP request rates or malformed authentication payloads targeting Reports Developer services.

Monitoring Recommendations

Forward Oracle Fusion Middleware and web tier logs to a centralized SIEM for correlation and long-term retention.
Baseline normal Reports Developer usage per account and alert on deviations in data volume, session frequency, and endpoint access.
Monitor privileged data stores accessed by Reports Developer for unexpected writes originating from low-privileged user contexts.

How to Mitigate CVE-2026-62627

Immediate Actions Required

Apply the fixes documented in the Oracle Security Alert August 2026 Critical Patch Update.
Inventory all Oracle Reports Developer 12.2.1.19.0 instances and prioritize internet-exposed hosts.
Rotate credentials for low-privileged Reports Developer accounts if unusual activity is observed.

Patch Information

Oracle released the fix for CVE-2026-62627 in the August 2026 Critical Patch Update. Administrators should consult the Oracle Security Alert for patch identifiers, prerequisite bundles, and installation guidance for Oracle Reports Developer 12.2.1.19.0.

Workarounds

Restrict HTTP access to Oracle Reports Developer to trusted management networks using network ACLs or a reverse proxy.
Enforce strong authentication and reduce the number of accounts holding any privileges on Reports Developer.
Segment Oracle Fusion Middleware components so that a compromise of Reports Developer cannot reach unrelated data stores.

bash

# Example: restrict access to Oracle Reports Developer HTTP listener to a management subnet
iptables -A INPUT -p tcp --dport 7001 -s 10.10.20.0/24 -j ACCEPT
iptables -A INPUT -p tcp --dport 7001 -j DROP