CVE-2026-47614: NVIDIA Dynamo for Linux SSRF Vulnerability

CVE-2026-47614 Overview

CVE-2026-47614 is a Server-Side Request Forgery (SSRF) vulnerability affecting NVIDIA Dynamo for Linux. An unauthenticated remote attacker can coerce the server to issue arbitrary outbound requests. Successful exploitation may lead to information disclosure from internal systems reachable by the Dynamo host.

The flaw is classified under CWE-918 (Server-Side Request Forgery). The attack is network-accessible, requires no privileges, and needs no user interaction. Confidentiality impact is high, while integrity and availability are unaffected.

Critical Impact
Remote unauthenticated attackers can force the Dynamo server to make requests to internal or external resources, potentially exposing cloud metadata, internal APIs, and sensitive service endpoints.

Affected Products

NVIDIA Dynamo for Linux

Discovery Timeline

2026-08-04 - CVE-2026-47614 published to NVD
2026-08-06 - Last updated in NVD database

Technical Details for CVE-2026-47614

Vulnerability Analysis

CVE-2026-47614 stems from insufficient validation of user-supplied URLs or hostnames processed by NVIDIA Dynamo. The application accepts input that controls the destination of server-side HTTP requests. Attackers manipulate this input to redirect requests toward unintended targets.

SSRF exploitation against inference and orchestration services is particularly impactful in cloud deployments. Dynamo instances typically run in environments with access to cloud provider metadata services, internal model registries, and adjacent microservices. An attacker can pivot from an externally exposed Dynamo endpoint into these internal systems.

Root Cause

The root cause is missing or insufficient allowlist validation of destination URLs before the server initiates outbound requests. The Dynamo component treats attacker-controlled input as a trusted target for HTTP fetches. Additional details are published in the NVIDIA product security advisory.

Attack Vector

The attack vector is network-based and requires no authentication. An attacker sends a crafted request containing a URL pointing to an internal resource, such as http://169.254.169.254/latest/meta-data/ on AWS or an internal service address. The Dynamo server processes the request and returns response data or side-channel information to the attacker.

// No verified proof-of-concept code is publicly available.
// Refer to the NVIDIA advisory for technical specifics:
// https://github.com/NVIDIA/product-security/tree/main/2026/5842

Detection Methods for CVE-2026-47614

Indicators of Compromise

Outbound HTTP requests from Dynamo hosts to cloud metadata addresses such as 169.254.169.254 or metadata.google.internal.
Unexpected outbound connections from Dynamo to internal RFC1918 addresses, localhost, or non-routable ranges.
Anomalous request patterns in Dynamo access logs containing URL parameters with internal hostnames or IP literals.

Detection Strategies

Inspect Dynamo request logs for user-supplied URL fields containing loopback, link-local, or private network addresses.
Deploy egress filtering telemetry to identify Dynamo processes originating unexpected outbound connections.
Correlate inbound API requests with subsequent outbound network flows to identify SSRF request-response chains.

Monitoring Recommendations

Forward Dynamo application and proxy logs to a centralized analytics platform for URL-parameter inspection.
Alert on any Dynamo-originated request to cloud metadata endpoints, which have no legitimate use case in normal operation.
Baseline the destinations Dynamo contacts and flag deviations from the established outbound profile.

How to Mitigate CVE-2026-47614

Immediate Actions Required

Apply the vendor patch referenced in the NVIDIA product security advisory as soon as it is available for your deployment.
Restrict network egress from Dynamo hosts using host firewalls or cloud security groups, blocking access to metadata services and internal management ranges.
Place Dynamo behind an authenticating reverse proxy to limit exposure of the vulnerable endpoints.

Patch Information

NVIDIA has published guidance and remediation details in the NVIDIA product security resource. Refer to the NVD entry for CVE-2026-47614 and the CVE.org record for the current advisory status.

Workarounds

Block outbound traffic from Dynamo hosts to 169.254.169.254, metadata.google.internal, and other cloud metadata endpoints at the network layer.
Enforce IMDSv2 on AWS EC2 instances running Dynamo to require session tokens for metadata access.
Segment Dynamo deployments away from sensitive internal services using network policy or service mesh controls.

bash

# Example iptables rule to block metadata service access from Dynamo host
iptables -A OUTPUT -d 169.254.169.254 -j DROP

# Example AWS CLI command to enforce IMDSv2 on an EC2 instance
aws ec2 modify-instance-metadata-options \
  --instance-id i-0123456789abcdef0 \
  --http-tokens required \
  --http-endpoint enabled