Executive brief
NVIDIA Megatron Bridge is a deep learning framework component used to optimize large language model training. A vulnerability in how it processes untrusted serialized data allows attackers to execute arbitrary code, modify data, or steal sensitive information without requiring special privileges or user interaction.
Technical details
The vulnerability is a deserialization of untrusted data issue in NVIDIA Megatron Bridge. The root cause stems from unsafe deserialization of user-controlled input, likely from network sources or external files. An attacker on the network can trigger code execution by crafting malicious serialized payloads. No authentication is required if Megatron Bridge processes remote input. A successful exploit enables arbitrary code execution, data tampering, and information disclosure on affected systems.
Affected products
- NVIDIA Megatron Bridge
Timeline
- 2026-09-01: disclosed