Backend-as-a-Service Vulnerability in Oracle REST Data Services

CVE-2026-46840

What is CVE-2026-46840?

CVE-2026-46840 is a critical vulnerability found within Oracle REST Data Services, specifically affecting its Backend-as-a-Service component. Oracle REST Data Services (ORDS) is designed to facilitate the development and deployment of RESTful web services for Oracle databases. This vulnerability allows unauthenticated attackers to gain network access via HTTPS, potentially compromising the entire Oracle REST Data Services environment. The high CVSS score of 10.0 underscores the severity of this security flaw, emphasizing that successful exploitation can lead to a complete takeover of the affected services. Given the extensive integration of ORDS within various Oracle-based solutions, the ramifications of such a breach could extend beyond ORDS itself, affecting a multitude of linked products and services.

Potential Impact of CVE-2026-46840

1. Compromise of Confidential Information: Successful exploitation can result in unauthorized access to confidential data managed by Oracle REST Data Services, leading to significant data breaches that may jeopardize sensitive organizational information.

2. Integrity and Availability Risks: The vulnerability poses serious threats to the integrity and availability of services reliant on ORDS. Attackers could manipulate data or render services inoperable, disrupting business operations and leading to potential financial losses.

3. Wider Security Implications: As the vulnerability exists within a widely used service that connects to various Oracle products, its exploitation could lead to cascading security issues across systems that interact with ORDS, amplifying the overall risk profile for organizations that use Oracle’s technology stack.

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