CVE-2026-47622: NVIDIA Dynamo Information Disclosure Flaw

CVE-2026-47622 Overview

CVE-2026-47622 affects NVIDIA Dynamo for Linux. The vulnerability allows a remote, unauthenticated attacker to trigger error messages that expose sensitive information to unauthorized parties. The weakness is categorized as CWE-209: Generation of Error Message Containing Sensitive Information. Successful exploitation results in information disclosure without requiring user interaction or elevated privileges. NVIDIA has published details in its product security repository. See the GitHub NVIDIA Security Repository for advisory content.

Critical Impact
Remote attackers can elicit verbose error responses from NVIDIA Dynamo that reveal sensitive runtime, configuration, or environment data useful for follow-on attacks.

Affected Products

NVIDIA Dynamo for Linux

Discovery Timeline

2026-08-04 - CVE-2026-47622 published to NVD
2026-08-06 - Last updated in NVD database

Technical Details for CVE-2026-47622

Vulnerability Analysis

CVE-2026-47622 is an information disclosure issue in NVIDIA Dynamo for Linux. The product returns error messages that include sensitive internal details when exception conditions occur. An attacker can send crafted requests over the network to intentionally provoke these error paths. The returned messages may include file paths, stack traces, module names, configuration data, or other runtime state.

The issue does not affect integrity or availability. Confidentiality impact is limited to the data exposed in error output, but that data often accelerates reconnaissance for subsequent exploitation. The vulnerability requires no authentication and no user interaction. According to the NVD CVE-2026-47622 Details, the attack vector is the network.

Root Cause

The root cause is improper handling of exception and error conditions in NVIDIA Dynamo, mapped to CWE-209. Error handlers propagate verbose diagnostic content to callers instead of returning sanitized generic messages. Developer-oriented debugging output remains reachable at runtime.

Attack Vector

Exploitation is remote. An unauthenticated attacker submits malformed or boundary-condition inputs to a network-exposed Dynamo endpoint. The service responds with error output containing sensitive information. The attacker collects the responses and uses the disclosed data to plan additional attacks against the host or adjacent services.

No verified public exploit code is available for this issue. Refer to the CVE.org Record for CVE-2026-47622 for further advisory tracking.

Detection Methods for CVE-2026-47622

Indicators of Compromise

Repeated malformed requests to NVIDIA Dynamo endpoints followed by HTTP 4xx or 5xx responses containing stack traces or file paths.
Outbound responses from Dynamo services containing internal hostnames, module paths, or environment variable values.
Reconnaissance patterns from a single source probing multiple Dynamo API paths with invalid payloads.

Detection Strategies

Inspect application and reverse-proxy logs for Dynamo responses that include stack trace signatures such as Traceback, at lines, or absolute filesystem paths.
Implement web application firewall (WAF) rules that flag outbound responses containing sensitive tokens like environment variable names or credential-like strings.
Correlate high volumes of client-side errors from single source IP addresses with subsequent access attempts to disclosed resources.

Monitoring Recommendations

Aggregate Dynamo error responses in a central log store and alert on responses exceeding a defined size or containing debug keywords.
Monitor for scanning behavior against Dynamo API endpoints from external network segments.
Baseline normal error rates per endpoint and alert on statistically significant deviations.

How to Mitigate CVE-2026-47622

Immediate Actions Required

Apply the NVIDIA-provided update for Dynamo as soon as it is available from the GitHub NVIDIA Security Repository.
Restrict network exposure of Dynamo services to trusted management networks until patched.
Disable verbose error output and debug modes in production deployments.

Patch Information

NVIDIA has published advisory content in its product security repository for tracking ID 5842. Consult the GitHub NVIDIA Security Repository for the fixed version and upgrade instructions specific to your Dynamo deployment.

Workarounds

Place NVIDIA Dynamo behind a reverse proxy that rewrites 4xx and 5xx responses to strip stack traces and sensitive fields.
Enforce network access controls so only authenticated internal clients can reach Dynamo endpoints.
Configure logging to capture full error detail server-side while returning generic messages to clients.

bash

# Configuration example: sanitize error responses at an nginx reverse proxy
server {
    listen 443 ssl;
    server_name dynamo.internal.example;

    proxy_intercept_errors on;
    error_page 500 502 503 504 /generic_error.html;
    error_page 400 401 403 404 /generic_error.html;

    location = /generic_error.html {
        internal;
        return 200 "An error occurred. Contact your administrator.";
    }

    location / {
        allow 10.0.0.0/8;
        deny all;
        proxy_pass http://127.0.0.1:8000;
    }
}