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Vulnerability Database/CVE-2026-47619

CVE-2026-47619: NVIDIA Dynamo for Linux DoS Vulnerability

CVE-2026-47619 is a denial of service vulnerability in NVIDIA Dynamo for Linux that could allow attackers to cause system failure, execute code, or disclose data. This article covers technical details, impact, and mitigation.

Published:

CVE-2026-47619 Overview

CVE-2026-47619 affects NVIDIA Dynamo for Linux, specifically within example and recipe components shipped with the product. An attacker who successfully exploits the flaw could cause a system failure and, in some scenarios, achieve code execution, tamper with data, disrupt availability, or disclose information. The issue is tracked under CWE-1357, which relates to reliance on insufficiently trustworthy components. Exploitation requires high privileges and high attack complexity, which limits opportunistic abuse but does not eliminate risk in shared or multi-tenant AI infrastructure.

Critical Impact

Successful exploitation of CVE-2026-47619 may lead to code execution, data tampering, denial of service, and information disclosure across affected NVIDIA Dynamo deployments.

Affected Products

  • NVIDIA Dynamo for Linux (examples and recipes components)
  • Deployments referencing bundled Dynamo example recipes
  • Downstream AI inference pipelines built on affected Dynamo releases

Discovery Timeline

  • 2026-08-04 - CVE-2026-47619 published to the National Vulnerability Database
  • 2026-08-06 - Last updated in NVD database

Technical Details for CVE-2026-47619

Vulnerability Analysis

NVIDIA Dynamo is a distributed inference serving framework used to run large-scale AI workloads on Linux. The vulnerability resides in the examples and recipes distributed alongside Dynamo, not in the core runtime alone. These recipes act as reference implementations, and downstream users routinely adapt them for production deployments. Because the recipes contain code and configuration that rely on components not sufficiently vetted for trust boundaries, an attacker with the required position in the environment can trigger a system failure. The advisory identifies four impact outcomes: code execution, data tampering, denial of service, and information disclosure. The NVIDIA product security repository hosts the vendor bulletin for this issue.

Root Cause

The issue is classified under CWE-1357, reliance on insufficiently trustworthy components. The examples and recipes ship with dependencies or logic that do not establish adequate trust before being used at runtime. Refer to the NVD entry for CVE-2026-47619 for the authoritative technical description.

Attack Vector

The attack is network-reachable but requires high privileges and high complexity. An attacker must already hold elevated rights within an affected Dynamo environment and must satisfy specific runtime preconditions. Once the conditions are met, the attacker can influence trusted execution paths introduced by the vulnerable recipes and cause the impacts described above. No public proof-of-concept is available, and the vulnerability is not listed on the CISA Known Exploited Vulnerabilities catalog.

No verified exploitation code is publicly available. See the CVE.org record for CVE-2026-47619 for the canonical vulnerability description.

Detection Methods for CVE-2026-47619

Indicators of Compromise

  • Unexpected process termination or restart loops of NVIDIA Dynamo inference workers on Linux hosts.
  • Outbound network connections from Dynamo example or recipe scripts to unfamiliar destinations.
  • Modifications to files under Dynamo example and recipe directories that were not initiated by change management.
  • Anomalous read access to model artifacts, tokenizer files, or configuration secrets used by Dynamo pipelines.

Detection Strategies

  • Inventory hosts running NVIDIA Dynamo and flag deployments that import or extend the shipped example recipes.
  • Monitor Linux audit logs for unexpected execve calls originating from Dynamo recipe directories.
  • Correlate GPU node process telemetry with identity events to detect high-privilege sessions launching recipe code.

Monitoring Recommendations

  • Baseline normal Dynamo worker behavior and alert on deviation in child process creation, network egress, and file writes.
  • Track privileged account use on GPU hosts and require just-in-time access for interactions with Dynamo recipes.
  • Ingest host, container, and Kubernetes logs from GPU nodes into a centralized data lake for cross-source correlation.

How to Mitigate CVE-2026-47619

Immediate Actions Required

  • Apply the fixed release identified in the NVIDIA product security advisory as soon as it is available for your Dynamo version.
  • Restrict high-privilege access to Dynamo hosts, since exploitation requires elevated rights.
  • Audit any production code derived from the bundled examples and recipes for the vulnerable patterns.

Patch Information

NVIDIA maintains the authoritative fix and version information at the NVIDIA product-security repository entry 5842. Administrators should track that advisory for the exact fixed Dynamo release and confirm the deployed version matches or exceeds it.

Workarounds

  • Remove or disable unused example recipes from production Dynamo installations to reduce the attack surface.
  • Segment Dynamo inference nodes on isolated networks and restrict inbound reachability to required service accounts.
  • Enforce least privilege for operators and service accounts interacting with Dynamo, blocking the high-privilege prerequisite required for exploitation.
  • Review third-party components referenced by Dynamo recipes and pin them to vetted, integrity-checked versions.

Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.

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