NVIDIA Megatron Bridge contains a vulnerability where an attacker could cause a deserialization of untrusted data. A successful exploit of this vulnerability might lead to code execution, data tampering, and information disclosure.

CVE-2026-61768 is a high-severity vulnerability in NVIDIA Megatron Bridge involving deserialization of untrusted data. An attacker who successfully exploits this vulnerability could achieve remote code execution, tamper with data, and disclose sensitive information. The vulnerability is currently undergoing analysis by NVD. NVIDIA has published a security advisory referencing this CVE. The flaw resides in the Megatron Bridge component, which is part of NVIDIA's AI and large-scale model training infrastructure. No patch or workaround details are included in the current article, but the issue is tracked via NVIDIA's product security repository. The impact is considered high given the potential for full code execution and data compromise.