CVE-2026-61779 is a deserialization of untrusted data vulnerability found in NVIDIA Megatron Bridge. An attacker who successfully exploits this vulnerability could achieve remote code execution, tamper with data, and cause information disclosure. The vulnerability is currently undergoing analysis on the NVD. NVIDIA has published a security advisory on their GitHub product-security repository. The flaw represents a high-severity risk given the potential for full code execution on affected systems. Organizations using NVIDIA Megatron Bridge should monitor for patches and apply mitigations as soon as they become available. The CVE record is also tracked on the official CVE.org portal.