CVE-2026-1665

A command injection vulnerability exists in nvm (Node Version Manager) versions 0.40.3 and below. The nvm_download() function uses eval to execute wget commands, and the NVM_AUTH_HEADER environment variable was not sanitized in the wget code path (though it was sanitized in the curl code path). An attacker who can set environment variables in a victim's shell environment (e.g., via malicious CI/CD configurations, compromised dotfiles, or Docker images) can inject arbitrary shell commands that execute when the victim runs nvm commands that trigger downloads, such as 'nvm install' or 'nvm ls-remote'.

A command injection vulnerability exists in nvm (Node Version Manager) versions 0.40.3 and below. The nvm_download() function uses eval to execute wget commands, and the NVM_AUTH_HEADER environment variable was not sanitized in the wget code path (though it was sanitized in the curl code path). An attacker who can set environment variables in a victim's shell environment (e.g., via malicious CI/CD configurations, compromised dotfiles, or Docker images) can inject arbitrary shell commands that execute when the victim runs nvm commands that trigger downloads, such as 'nvm install' or 'nvm ls-remote'.

Una vulnerabilidad de inyección de comandos existe en nvm (Node Version Manager) versiones 0.40.3 e inferiores. La función nvm_download() utiliza eval para ejecutar comandos wget, y la variable de entorno NVM_AUTH_HEADER no fue saneada en la ruta de código de wget (aunque sí fue saneada en la ruta de código de curl). Un atacante que puede establecer variables de entorno en el entorno de shell de una víctima (por ejemplo, a través de configuraciones maliciosas de CI/CD, dotfiles comprometidos o imágenes de Docker) puede inyectar comandos de shell arbitrarios que se ejecutan cuando la víctima ejecuta comandos nvm que activan descargas, como 'nvm install' o 'nvm ls-remote'.