CVE-2026-65091 is a vulnerability affecting NVIDIA OpenShell across all platforms. The flaw allows a malicious gateway to perform OS command injection against the affected software. Successful exploitation could result in arbitrary code execution, data tampering, and information disclosure. The vulnerability is categorized as high severity. NVIDIA has published a security advisory and the issue is tracked both on NVD and CVE.org. No specific mitigation details are provided in the article content, but users are advised to reference NVIDIA's product security repository for further guidance. The cross-platform nature of the vulnerability broadens the potential attack surface significantly.