Executive brief
NVIDIA Megatron Bridge is a software component used in machine learning infrastructure for model training and inference. A vulnerability in how it processes untrusted data allows an attacker to execute arbitrary code, tamper with data, or steal sensitive information without special privileges or authentication.
Technical details
The vulnerability is a deserialization of untrusted data issue in NVIDIA Megatron Bridge. An attacker can supply maliciously crafted serialized objects that, when deserialized by the application, trigger arbitrary code execution. The attack is network-accessible with no authentication required. Successful exploitation leads to remote code execution, data tampering, and information disclosure. NVIDIA has published CVE-2026-61764 with a CVSS score of 7.8 (high severity).
Affected products
- NVIDIA Megatron Bridge
Timeline
- 2026-09-01: disclosed