# CVE-2026-47620: NVIDIA Dynamo race condition in LoRA manager singleton initialization

Source: https://junglewise.ai/threats/cve-2026-47620-nvidia-dynamo-race-condition-in-lora-manager-singleton  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-08-04. Updated: 2026-09-25  
License: CC BY 4.0 with a link back

CVE-2026-47620 · Severity: medium · CVSS 6.5 · Published 2026-08-04

NVIDIA Dynamo is a machine learning optimization tool for Linux systems. This vulnerability allows an attacker to trigger a race condition during initialization of the LoRA (Low-Rank Adaptation) manager component, potentially leading to corrupted data and service disruptions in systems relying on Dynamo for AI model inference or training.

Technologies: [Linux Kernel](https://junglewise.ai/threats/technologies/kernel), [Nvidia Dynamo](https://junglewise.ai/threats/technologies/dynamo). Vendors: [Linux](https://junglewise.ai/threats/vendors/linux), [Nvidia](https://junglewise.ai/threats/vendors/nvidia).

## Quick answers

**Is CVE-2026-47620 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-47620 being exploited in the wild.

**How severe is CVE-2026-47620?** Medium severity, with a CVSS score of 6.5, published 4 August 2026.

**Which products and versions are affected?** Nvidia Dynamo <UNKNOWN>.

**Is there a fix for CVE-2026-47620?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-47620 attacked?** It is attacked with local access, in a software library.

**Am I affected by CVE-2026-47620?** Check whether you run Linux Kernel or Nvidia Dynamo at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

A race condition exists in the LoRA manager singleton initialization code in NVIDIA Dynamo for Linux. The vulnerability allows an attacker to exploit timing gaps during concurrent initialization attempts, potentially causing data tampering and denial of service. The attack is likely triggered through local or network access to the Dynamo service without requiring elevated privileges, though the exact attack vector depends on the deployment context. Successful exploitation can result in corrupted model state or process crashes, affecting availability and data integrity of machine learning workloads.

## Affected products

- NVIDIA Dynamo <UNKNOWN>

## Timeline

- 2026-08-04: disclosed

## References

- [https://github.com/NVIDIA/product-security/tree/main/2026/5842](https://github.com/NVIDIA/product-security/tree/main/2026/5842)
- [https://www.cve.org/CVERecord?id=CVE-2026-47620](https://www.cve.org/CVERecord?id=CVE-2026-47620)

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