{"api_version":"1","generated_at":"2026-06-27T01:43:56+00:00","cve":"CVE-2021-42740","urls":{"html":"https://cve.report/CVE-2021-42740","api":"https://cve.report/api/cve/CVE-2021-42740.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2021-42740","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-42740"},"summary":{"title":"CVE-2021-42740","description":"The shell-quote package before 1.7.3 for Node.js allows command injection. An attacker can inject unescaped shell metacharacters through a regex designed to support Windows drive letters. If the output of this package is passed to a real shell as a quoted argument to a command with exec(), an attacker can inject arbitrary commands. This is because the Windows drive letter regex character class is {A-z] instead of the correct {A-Za-z]. 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