CVE-2026-61774 affects NVIDIA Megatron Bridge, a component likely related to NVIDIA's AI/ML infrastructure tooling. The vulnerability involves deserialization of untrusted data, a well-known and dangerous vulnerability class. A successful exploit could allow an attacker to achieve remote code execution, tamper with data, or disclose sensitive information. The vulnerability is currently undergoing analysis on the NVD. NVIDIA has published a security advisory referencing this CVE in their product-security GitHub repository. No patch or workaround details are included in the available content. The severity is rated High based on the potential impact of code execution and data compromise. Organizations using NVIDIA Megatron Bridge should monitor for updates from NVIDIA and apply patches as soon as they become available.