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How CVE-2026-46841 Works
This vulnerability resides in the General component of Oracle REST Data Services (ORDS). It affects versions 24.2.0 through 26.1.0 inclusive. The flaw arises from improper access control mechanisms that fail to adequately restrict certain data retrieval operations. An unauthenticated attacker with network access can exploit this vulnerability by sending a specially crafted HTTPS request to the affected ORDS endpoint. The exploitation does not require any prior authentication or user interaction, making it easily exploitable by remote attackers. The attack leverages the lack of sufficient validation on the API endpoints, allowing the attacker to bypass authorization checks. Consequently, they can gain unauthorized read access to a subset of the data that ORDS is designed to serve. This data could include sensitive information such as database query results, configuration details, or other system metadata. The vulnerability is particularly dangerous because it can be exploited over the network without any special conditions, meaning it represents a straightforward attack vector. The successful exploitation leads to a breach of confidentiality but does not directly allow data modification or system control. According to the CVSS v3.1 metrics, the attack complexity is low, requiring no privileges, and the scope remains unchanged. The confidentiality impact is rated as Low, indicating that while the attack exposes some data, the breadth or sensitivity of the exposed information is limited. However, this information could still be used as a stepping stone for further attacks or to harvest intelligence about the internal system. The vulnerability was officially published by NIST on May 28, 2026, and last modified on June 4, 2026. It underscores the critical need for proper authentication and authorization controls in REST API gateways that sit in front of enterprise databases.
DailyCVE Form
Platform: Oracle REST Data
Version: 24.2.0-26.1.0
Vulnerability : Unauthenticated Read
Severity: 5.3 Medium
date: 2026-05-28
Prediction: 2026-07-15
What Undercode Say
Verify ORDS version java -jar ords.war version Check for exposure to CVE-2026-46841 curl -k -X GET "https://target-host/ords/_/api/vulnerability-test" -H "X-Test-Header: CVE-2026-46841" -v
Simple Python script to test for the vulnerability
import requests
url = "https://target-host/ords/some-endpoint"
headers = {"User-Agent": "CVE-2026-46841-PoC"}
try:
response = requests.get(url, headers=headers, verify=False)
if response.status_code == 200 and "sensitive_data" in response.text:
print("Vulnerable")
else:
print("Not vulnerable or patched")
except Exception as e:
print(f"Error: {e}")
Exploit
An attacker can exploit CVE-2026-46841 by sending unauthenticated `GET` requests to specific ORDS endpoints. By manipulating the request path or parameters, the attacker can bypass access controls and retrieve data that should be restricted. Example exploit request:
curl -k "https://vulnerable-host/ords/hr/employees/?q="
This simple query might return all employee records from a database if the ORDS access control is improperly configured. No authentication tokens are required. Attackers can automate this to enumerate and extract information systematically.
Protection
- Upgrade ORDS: Apply the patch provided by Oracle in the Critical Patch Update (CPU) for July 2026 or later.
- Network Restrictions: Use firewall rules to restrict access to ORDS endpoints from trusted IP addresses only.
- Enable Additional Authentication: Deploy a Web Application Firewall (WAF) or API gateway to require authentication for all ORDS requests.
- Monitoring: Implement logging and monitoring for unusual request patterns, such as high volumes of unauthenticated `GET` requests.
Impact
- Confidentiality Breach: An unauthenticated attacker can read a subset of data accessible via ORDS.
- Information Leakage: Sensitive database contents, configuration data, or metadata may be exposed.
- Lateral Movement Risk: The leaked information can be used to plan further attacks against the database or backend systems.
- Compliance Violations: Exposure of personal or regulated data may lead to GDPR, HIPAA, or other compliance breaches.
Analytics
- CVSS 3.1 Base Score: 5.3 (Medium)
- Attack Vector (AV): Network (N)
- Attack Complexity (AC): Low (L)
- Privileges Required (PR): None (N)
- User Interaction (UI): None (N)
- Scope (S): Unchanged (U)
- Confidentiality Impact (C): Low (L)
- Integrity Impact (I): None (N)
- Availability Impact (A): None (N)
- Exploitability: Easily exploitable by remote attackers without credentials.
- Patch Availability: Expected in the July 2026 Oracle Critical Patch Update.
- Source: Oracle via NVD (Published: May 28, 2026; Last Modified: June 4, 2026).
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Sources:
Reported By: nvd.nist.gov
Extra Source Hub:
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