{"api_version":"1","generated_at":"2026-10-21T11:04:57+00:00","cve":"CVE-2026-54566","urls":{"html":"https://cve.report/CVE-2026-54566","api":"https://cve.report/api/cve/CVE-2026-54566.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-54566","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-54566"},"summary":{"title":"Markdown Preview Enhanced: Remote Code Execution via VM Sandbox Escape in `.crossnote/config.js` and `.crossnote/parser.js`","description":"Markdown Preview Enhanced is a Markdown preview extension for Visual Studio Code. Prior to 0.8.29, Markdown Preview Enhanced evaluates repository-controlled .crossnote/config.js and .crossnote/parser.js files with vm.runInNewContext, which does not provide a security boundary from the Node.js host realm. 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