CVE-2026-46817 - Oracle Payments Unauthenticated Remote Takeover via HTTP

CVE-2026-46817 is a critical vulnerability affecting the Oracle Payments product within the Oracle E-Business Suite. Specifically, the issue resides in the File Transmission component. The vulnerability impacts versions 12.2.3 through 12.2.15. This is an easily exploitable vulnerability, as it requires no authentication and can be triggered via network access over HTTP. Successful exploitation of this vulnerability can lead to a complete takeover of Oracle Payments, allowing attackers to gain full control over the application and its data. Defenders should prioritize patching affected systems.

Attack Chain

1. The attacker identifies an Oracle E-Business Suite instance running a vulnerable version of Oracle Payments (12.2.3 - 12.2.15).
2. The attacker crafts a malicious HTTP request targeting the File Transmission component.
3. The request bypasses authentication checks due to the nature of the vulnerability.
4. The crafted request exploits a flaw in how the File Transmission component handles file operations.
5. The attacker leverages the file operation vulnerability to execute arbitrary code on the server.
6. The attacker gains initial access to the Oracle Payments server with the privileges of the application user.
7. The attacker escalates privileges within the Oracle Payments system, potentially gaining root or administrator access.
8. The attacker achieves a full takeover of Oracle Payments, enabling them to access sensitive data, modify configurations, and potentially pivot to other systems within the network.

Impact

Successful exploitation of CVE-2026-46817 allows an unauthenticated attacker to completely compromise an Oracle Payments instance. Given the role of Oracle Payments in managing financial transactions within the E-Business Suite, this could lead to significant financial losses, data breaches, and disruption of business operations. This vulnerability affects versions 12.2.3-12.2.15, potentially impacting a large number of organizations using Oracle E-Business Suite for their financial operations.

Recommendation

• Apply the Oracle patch for CVE-2026-46817 to remediate the vulnerability in the File Transmission component of Oracle Payments.
• Deploy the Sigma rule “Detect CVE-2026-46817 Exploitation Attempt - HTTP Request to Oracle Payments File Transmission” to identify potential exploitation attempts targeting the vulnerable component.
• Monitor web server logs for suspicious HTTP requests to the File Transmission component, specifically looking for unusual parameters or file operations.
• Implement network segmentation to limit the impact of a successful attack on Oracle Payments by restricting access to other critical systems.