Executive brief
NVIDIA Megatron Bridge, a tool used for connecting large-scale AI models, contains a security flaw in how it handles data. An attacker could trick a user into opening a malicious file, allowing the attacker to take control of the system, steal sensitive information, or modify data. This could lead to a full compromise of the workstation or server where the software is running.
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 occurs when the application processes maliciously crafted input without sufficient validation, allowing for the execution of arbitrary code. The attack vector is local (AV:L) and requires user interaction (UI:R), meaning a victim must be persuaded to process a malicious file or data stream. Successful exploitation can result in a complete loss of confidentiality, integrity, and availability (C:H/I:H/A:H).
Affected products
- NVIDIA Megatron-Bridge 0.0 to 0.4.0
Timeline
- 2026-07-01: advisory: NVIDIA published the security advisory.
- 2026-07-01: disclosed: CVE record published to the NVD.