CVE-2026-61761 is a high-severity vulnerability affecting NVIDIA Megatron Bridge. The flaw involves deserialization of untrusted data, which can be exploited by an attacker to achieve code execution, data tampering, and information disclosure. The vulnerability was published by NVD and is also tracked on the CVE.org record. NVIDIA has published a security advisory referencing this issue in their product-security GitHub repository. No specific exploit code or active exploitation details are currently provided in the article. The vulnerability poses significant risks to environments running NVIDIA Megatron Bridge, particularly in AI/ML infrastructure contexts. Users and administrators are advised to review the NVIDIA advisory and apply any available patches or mitigations promptly.