CVE-2026-61772 is a high-severity vulnerability identified in NVIDIA Megatron Bridge, a component associated with NVIDIA's AI and machine learning infrastructure. The vulnerability involves deserialization of untrusted data, a class of flaw that can be exploited by remote or local attackers to manipulate the deserialization process. Successful exploitation could lead to arbitrary code execution, allowing an attacker to run malicious code in the context of the affected application. Additional impacts include data tampering, where the integrity of processed data could be compromised, and information disclosure, potentially exposing sensitive data. The vulnerability has been assigned a High criticality rating, reflecting its significant potential impact. It is catalogued in the National Vulnerability Database (NVD) and is currently undergoing analysis. NVIDIA has published a security advisory through their product-security GitHub repository. Users and administrators of NVIDIA Megatron Bridge are advised to monitor NVIDIA's official channels for patches and mitigations.
