Executive brief
NVIDIA Megatron Bridge, a tool used for converting and merging large-scale AI models, contains a security flaw in its data merging tutorial. If an attacker provides specially crafted malicious input to this component, they could execute unauthorized commands on the system. This could lead to a full system compromise, including the theft of sensitive data or the ability to modify critical files.
Technical details
A code injection vulnerability (CWE-94) exists in the data merging tutorial of NVIDIA Megatron Bridge. The flaw stems from improper validation of input, allowing an attacker to inject and execute arbitrary code. The attack vector is local, requiring the attacker to have low-level privileges on the system to provide malicious input. Successful exploitation can lead to full code execution, escalation of privileges, and unauthorized data access or tampering. The vulnerability is addressed in version 0.2.2.
Affected products
- NVIDIA Megatron-Bridge All versions prior to 0.2.2
- NVIDIA NeMo Megatron Bridge All versions prior to 0.2.2
Timeline
- 2026-02-18: disclosed
- 2026-02-18: advisory