Executive brief
NVIDIA Megatron Bridge, a tool used for connecting large language model frameworks, contains a security flaw in how it processes data. An attacker could use this vulnerability to trick the system into running unauthorized commands or accessing sensitive information. This could lead to a full system compromise, data theft, or unauthorized changes to the software's operation.
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 an attacker to trigger the execution of arbitrary code. The attack vector is local (AV:L) and requires user interaction (UI:R), meaning a user must be persuaded to open or process a malicious file or data stream. Successful exploitation can result in a complete compromise 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.