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-2026-61778 is a deserialization of untrusted data vulnerability affecting NVIDIA Megatron Bridge. An attacker who successfully exploits this vulnerability could achieve remote code execution, data tampering, and information disclosure. The vulnerability is currently undergoing analysis by NVD. The issue is documented in NVIDIA's product security advisories on GitHub. Deserialization vulnerabilities are considered high severity due to their potential for arbitrary code execution. No patch or mitigation details are provided in the current article content.