NVIDIA TensorRT-LLM 1.3.0rc24 KvCacheAwareRouter code injection

Summaryinfo

A vulnerability, which was classified as very critical, has been found in NVIDIA TensorRT-LLM 1.3.0rc24. This impacts an unknown function of the component KvCacheAwareRouter. This manipulation causes code injection. This vulnerability appears as CVE-2026-65119. The attack requires local access. There is no available exploit.

Detailsinfo

A vulnerability was found in NVIDIA TensorRT-LLM 1.3.0rc24. It has been declared as very critical. Affected by this vulnerability is an unknown functionality of the component KvCacheAwareRouter. The manipulation with an unknown input leads to a code injection vulnerability. The CWE definition for the vulnerability is CWE-94. The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

NVIDIA TensorRT-LLM for any platform contains a vulnerability in KvCacheAwareRouter tokenizer loading, where an attacker could cause inclusion of functionality from an untrusted control sphere. A successful exploit might lead to code execution, information disclosure, data tampering, and denial of service.

This vulnerability is known as CVE-2026-65119 since 07/21/2026. The exploitation appears to be easy. Attacking locally is a requirement. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 10/27/2026). The attack technique deployed by this issue is T1059 according to MITRE ATT&CK.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Type

• Artificial Intelligence Software

Vendor

• NVIDIA

Name

• TensorRT-LLM

Version

• 1.3.0rc24

License

• commercial

Website

• Vendor: https://www.nvidia.com/

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