Executive brief
NVIDIA Megatron Bridge, a tool used for bridging large-scale machine learning models, contains a security flaw in how it processes data. An attacker could use this vulnerability to take control of a system, steal sensitive information, or modify data. This typically requires a user to interact with a malicious file or data stream provided by the attacker.
Technical details
A deserialization of untrusted data vulnerability (CWE-502) exists in NVIDIA Megatron Bridge for Linux versions 0.0 through 0.4.0. The flaw allows an attacker to provide a specially crafted serialized object that, when processed by the application, executes arbitrary code or performs unauthorized actions. The attack vector is local and requires user interaction (UI:R), meaning a victim must be tricked into opening a malicious file or connecting to a malicious data source. Successful exploitation can result in full compromise of the application's integrity, confidentiality, and availability, including potential privilege escalation.
Affected products
- NVIDIA Megatron-Bridge 0.0 to 0.4.0
Timeline
- 2026-07-01: advisory: Initial disclosure by NVIDIA and NVD publication.