Command Injection in nvm via NVM_AUTH_HEADER in wget code path_CVE-2026-1665

{
    "lastseen": "",
    "description": "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'.",
    "published": "2026-01-29T23:04:05.741Z",
    "modified": "2026-01-29T23:06:47.873Z",
    "type": "cve",
    "title": "Command Injection in nvm via NVM_AUTH_HEADER in wget code path",
    "source": "openjs",
    "references": "https://github.com/nvm-sh/nvm/commit/44e2590cdf257faf7d885e4470be8dc66cec9506\nhttps://github.com/nvm-sh/nvm/releases/tag/v0.40.4\nhttps://github.com/nvm-sh/nvm\nhttps://github.com/nvm-sh/nvm/pull/3380",
    "id": "CVE-2026-1665",
    "bulletinFamily": "",
    "cwe": [
        "CWE-78",
        "CWE-95"
    ],
    "cvelist": null,
    "sourceData": "nvm-sh nvm 0.40.0",
    "sourceHref": "",
    "cvss": {
        "score": 5.4,
        "severity": "MEDIUM",
        "vector": "CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
        "version": "4.0"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
            "vectorString": "",
            "baseScore": 0,
            "baseSeverity": "",
            "attackVector": "",
            "attackComplexity": "",
            "privilegesRequired": "",
            "userInteraction": "",
            "scope": "",
            "confidentialityImpact": "",
            "integrityImpact": "",
            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "nvm",
    "version": "0.40.0",
    "vendor": "nvm-sh",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}