CVE-2026-47615 in Dynamo
Summary
by MITRE • 08/04/2026
NVIDIA Dynamo for Linux contains a vulnerability where an attacker may cause server-side request forgery by supplying a crafted URL in a multimodal request. A successful exploit of this vulnerability might lead to information disclosure.
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Analysis
by VulDB Data Team • 08/05/2026
The vulnerability in NVIDIA Dynamo for Linux represents a critical server-side request forgery flaw that enables attackers to manipulate the application's behavior through specially crafted URLs within multimodal requests. This weakness stems from insufficient validation of user-supplied input parameters, allowing malicious actors to inject arbitrary URLs that the system processes without proper sanitization or authorization checks. The vulnerability specifically affects the handling of multimodal requests where multiple data types are processed simultaneously, creating an attack surface where URL manipulation can occur during the request processing pipeline. According to CWE-918, this corresponds to server-side request forgery vulnerabilities where attackers can induce the server to make unintended requests to internal or external systems.
The technical implementation of this flaw occurs when the Dynamo framework receives multimodal requests containing URL parameters that are not properly validated against a whitelist of acceptable domains or protocols. Attackers can construct malicious URLs with protocols such as file://, http://, or https:// that point to internal network resources or external servers controlled by the attacker. When the system processes these requests, it fails to verify that the destination URLs are legitimate and authorized, potentially allowing access to internal services, sensitive data repositories, or other systems within the network perimeter. The vulnerability is particularly dangerous because it can be exploited through legitimate application interfaces without requiring elevated privileges or authentication.
The operational impact of this vulnerability extends beyond simple information disclosure, as it creates potential pathways for attackers to escalate their privileges and gain deeper access to the system infrastructure. An attacker could leverage this weakness to enumerate internal network services, access restricted files, or even establish command and control channels by directing requests to malicious servers. The multimodal nature of the requests adds complexity to detection since legitimate applications may legitimately require URL processing, making it difficult for security monitoring systems to distinguish between normal and malicious traffic patterns. This vulnerability aligns with ATT&CK technique T1071.004 for application layer protocol tunneling and T1566 for phishing attacks through malicious links.
Mitigation strategies should focus on implementing robust input validation mechanisms that enforce strict whitelisting of acceptable URL schemes and domains, combined with proper authorization checks before any external resource access occurs. Organizations should deploy network segmentation to limit access to sensitive internal resources and implement web application firewalls that can detect and block suspicious URL patterns. Regular security assessments should include testing for similar vulnerabilities in the processing pipeline, particularly focusing on how different data types are handled within multimodal request contexts. The implementation of proper logging and monitoring around URL processing activities can help detect anomalous behavior indicative of exploitation attempts, while also providing audit trails for compliance purposes. Additionally, regular updates and patches from NVIDIA should be applied promptly to address known vulnerabilities in the Dynamo framework components.
This vulnerability demonstrates the importance of secure input handling in modern application frameworks, particularly those processing complex data types. It highlights how seemingly benign functionality can create security risks when proper validation and authorization controls are not implemented throughout the entire request processing lifecycle. The attack surface expands significantly when multiple data types are processed simultaneously, requiring comprehensive security testing that covers all possible interaction patterns between different request components. Organizations should also consider implementing principle of least privilege access controls for any services handling user-supplied URLs to minimize potential damage from successful exploitation attempts.