CVE-2026-62630: Oracle Reports Developer Auth Bypass Flaw

CVE-2026-62630 Overview

CVE-2026-62630 is a critical vulnerability in the Oracle Reports Developer product of Oracle Fusion Middleware, within the Security and Authentication component. The affected version is 14.1.2.0.0. An unauthenticated attacker with network access via TCP can compromise Oracle Reports Developer without user interaction. Successful exploitation results in complete takeover of the Oracle Reports Developer instance, impacting confidentiality, integrity, and availability. Oracle disclosed the issue through its August 2026 Critical Patch Update security alert.

Critical Impact
Unauthenticated network attackers can fully take over Oracle Reports Developer 14.1.2.0.0 instances via low-complexity TCP-based attacks.

Affected Products

Oracle Fusion Middleware — Oracle Reports Developer
Affected version: 14.1.2.0.0
Component: Security and Authentication

Discovery Timeline

2026-08-18 - CVE-2026-62630 published to NVD
2026-08-20 - Last updated in NVD database

Technical Details for CVE-2026-62630

Vulnerability Analysis

The flaw resides in the Security and Authentication component of Oracle Reports Developer 14.1.2.0.0. Oracle classifies the issue as easily exploitable, requiring no authentication, no privileges, and no user interaction. An attacker only needs network reachability to the Oracle Reports Developer service over TCP.

Successful exploitation grants the attacker full takeover of the Oracle Reports Developer instance. This includes reading sensitive report data, modifying report definitions or output, and disrupting service availability. Because the vulnerability sits within the authentication layer, it undermines the primary control intended to gate access to reporting functionality.

Oracle has not published root-cause specifics beyond the component and impact metrics. The EPSS score is 0.486% with a percentile of 39.991, indicating limited observed exploitation activity at time of publication.

Root Cause

Oracle's advisory attributes the vulnerability to the Security and Authentication component of Oracle Reports Developer. Detailed root-cause information, including the specific weakness class (CWE) and vulnerable code path, has not been publicly disclosed by the vendor. Refer to the Oracle Security Alert for authoritative technical details.

Attack Vector

The attack vector is network-based over TCP. An unauthenticated remote attacker who can reach the Oracle Reports Developer listener can execute the attack. No user interaction is required, and the attack scope remains unchanged, meaning the impact is contained within the vulnerable component but results in full compromise of that component.

No verified proof-of-concept code is publicly available. See the Oracle Security Alert for vendor guidance.

Detection Methods for CVE-2026-62630

Indicators of Compromise

Unexpected authentication events or session creation on Oracle Reports Developer listeners from untrusted network segments.
Anomalous report definition changes, new report jobs, or output files written by the Reports Developer service account.
Outbound network connections initiated by Oracle Reports Developer processes to unfamiliar destinations.

Detection Strategies

Inventory all Oracle Fusion Middleware deployments and confirm whether Oracle Reports Developer 14.1.2.0.0 is present.
Enable and review Oracle Fusion Middleware audit logs, focusing on authentication failures and successes on the Reports Developer component.
Correlate network flow data with Oracle Reports Developer listener ports to identify unauthorized TCP sessions from external or unexpected sources.

Monitoring Recommendations

Forward Oracle Fusion Middleware and host operating system logs to a centralized SIEM for correlation with network telemetry.
Alert on new child processes spawned by the Oracle Reports Developer service, such as shells or scripting interpreters.
Monitor for privilege changes, new local accounts, or scheduled tasks created on hosts running Oracle Reports Developer.

How to Mitigate CVE-2026-62630

Immediate Actions Required

Apply the fixes referenced in the Oracle August 2026 Critical Patch Update security alert to all Oracle Reports Developer 14.1.2.0.0 instances.
Restrict network access to Oracle Reports Developer listeners so only authorized administrative hosts can reach TCP service ports.
Audit the Reports Developer service account for unexpected activity, credential reuse, and excessive privileges.

Patch Information

Oracle addressed CVE-2026-62630 in its August 2026 Critical Patch Update. Administrators should consult the Oracle Security Alert for the exact patch identifiers, download locations, and prerequisites applicable to Oracle Fusion Middleware 14.1.2.0.0.

Workarounds

Place Oracle Reports Developer behind a network firewall or jump host that enforces source IP allow-listing on TCP listener ports.
Disable or shut down Oracle Reports Developer instances that are not required for business operations until patching is complete.
Segment Oracle Fusion Middleware hosts from general user networks and the public internet to reduce the attack surface.

bash

# Configuration example: restrict inbound TCP access to Oracle Reports Developer
# Replace <REPORTS_PORT> and <ADMIN_SUBNET> with environment-specific values.
iptables -A INPUT -p tcp --dport <REPORTS_PORT> -s <ADMIN_SUBNET> -j ACCEPT
iptables -A INPUT -p tcp --dport <REPORTS_PORT> -j DROP