CVE-2026-47470: NVIDIA TensorRT-LLM improper input validation in gRPC server chat API

CVE-2026-47470 · Severity: medium · CVSS 6.2 · Published 2026-07-14

NVIDIA TensorRT-LLM, a library used to optimize and accelerate large language model performance, contains a security flaw in its chat interface component. A local attacker could exploit this vulnerability to crash the service, leading to a denial of service. This could disrupt AI-powered applications and services relying on this library for real-time processing.

Technologies: Nvidia TensorRT-LLM. Vendors: Nvidia.

Quick answers

Is CVE-2026-47470 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-47470 being exploited in the wild.
How severe is CVE-2026-47470?
Medium severity, with a CVSS score of 6.2, published 14 July 2026.
Which products and versions are affected?
Nvidia TensorRT-LLM up to and including v1.3.0 rc14.
Is there a fix for CVE-2026-47470?
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-2026-47470 attacked?
It is attacked with local access, in a software library.
Am I affected by CVE-2026-47470?
Check whether you run Nvidia TensorRT-LLM 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 vulnerability exists in the gRPC server chat API endpoint of NVIDIA TensorRT-LLM due to improper input validation (CWE-20). A local attacker can exploit this flaw by sending specially crafted requests to the chat API. A successful exploit results in a denial of service (DoS) condition, impacting the availability of the LLM serving infrastructure. The vulnerability affects versions up to and including v1.3.0 rc14 across all platforms.

Affected products

  • NVIDIA TensorRT-LLM up to and including v1.3.0 rc14

Timeline

  • 2026-07-14: advisory: Initial disclosure by NVIDIA

References

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