{"id":"CVE-2018-6342","aliases":["EUVD-2019-0169","GHSA-29gp-92wp-94q8"],"status":"published","title":"react-dev-utils on Windows vulnerable to Remote Code Execution","description":"react-dev-utils on Windows allows developers to run a local webserver for accepting various commands, including a command to launch an editor. The input to that command was not properly sanitized, allowing an attacker who can make a network request to the server (either via CSRF or by direct request) to execute arbitrary commands on the targeted system. This issue affects multiple branches: 1.x.x prior to 1.0.4, 2.x.x prior to 2.0.2, 3.x.x prior to 3.1.2, 4.x.x prior to 4.2.2, and 5.x.x prior to 5.0.2.","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.02845,"percentile":0.86784,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-78"],"published":"2018-12-31T22:00:00Z","modified":"2026-10-20T10:49:55Z","fixes":[{"ecosystem":"npm","package":"react-dev-utils","fixed_in":["1.0.4","2.0.2","3.1.2","4.2.2","5.0.2"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"npm","package":"react-dev-utils","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.0.0"},{"fixed":"1.0.4"}]}]},{"source":"ghsa","ecosystem":"npm","package":"react-dev-utils","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.0.0"},{"fixed":"2.0.2"}]}]},{"source":"ghsa","ecosystem":"npm","package":"react-dev-utils","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.0.0"},{"fixed":"3.1.2"}]}]},{"source":"ghsa","ecosystem":"npm","package":"react-dev-utils","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.0.0"},{"fixed":"4.2.2"}]}]},{"source":"ghsa","ecosystem":"npm","package":"react-dev-utils","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.0.0"},{"fixed":"5.0.2"}]}]},{"source":"osv","ecosystem":"npm","package":"react-dev-utils","ranges":[{"type":"SEMVER","events":[{"introduced":"1.0.0"},{"fixed":"1.0.4"}]}]},{"source":"osv","ecosystem":"npm","package":"react-dev-utils","ranges":[{"type":"SEMVER","events":[{"introduced":"2.0.0"},{"fixed":"2.0.2"}]}]},{"source":"osv","ecosystem":"npm","package":"react-dev-utils","ranges":[{"type":"SEMVER","events":[{"introduced":"3.0.0"},{"fixed":"3.1.2"}]}]},{"source":"osv","ecosystem":"npm","package":"react-dev-utils","ranges":[{"type":"SEMVER","events":[{"introduced":"4.0.0"},{"fixed":"4.2.2"}]}]},{"source":"osv","ecosystem":"npm","package":"react-dev-utils","ranges":[{"type":"SEMVER","events":[{"introduced":"5.0.0"},{"fixed":"5.0.2"}]}]}],"products":[{"vendor":"facebook","product":"react-dev-utils"}],"references":[{"url":"https://github.com/facebook/create-react-app/releases/tag/v1.1.5","tags":["x_refsource_MISC","x_transferred","Release Notes","Third Party Advisory","advisory","web"]},{"url":"https://github.com/facebook/create-react-app/pull/4866","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-6342","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-29gp-92wp-94q8","tags":["advisory"]},{"url":"https://www.npmjs.com/advisories/695","tags":["web"]},{"url":"https://github.com/facebook/create-react-app","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2018-6342","description":"react-dev-utils on Windows allows developers to run a local webserver for accepting various commands, including a command to launch an editor. The input to that command was not properly sanitized, allowing an attacker who can make a network request to the server (either via CSRF or by direct request) to execute arbitrary commands on the targeted system. This issue affects multiple branches: 1.x.x prior to 1.0.4, 2.x.x prior to 2.0.2, 3.x.x prior to 3.1.2, 4.x.x prior to 4.2.2, and 5.x.x prior to 5.0.2.","status":"published","published":"2018-12-31T22:00:00Z","modified":"2025-05-06T16:07:37.832Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"adp"}],"cwes":["CWE-78"],"updated_at":"2026-11-02T14:35:05.961936Z"}],"euvd":[{"id":"EUVD-2019-0169","description":"react-dev-utils on Windows allows developers to run a local webserver for accepting various commands, including a command to launch an editor. The input to that command was not properly sanitized, allowing an attacker who can make a network request to the server (either via CSRF or by direct request) to execute arbitrary commands on the targeted system. This issue affects multiple branches: 1.x.x prior to 1.0.4, 2.x.x prior to 2.0.2, 3.x.x prior to 3.1.2, 4.x.x prior to 4.2.2, and 5.x.x prior to 5.0.2.","status":"published","published":"2018-12-31T22:00:00Z","modified":"2025-05-06T16:07:37Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T20:32:54.355989Z"}],"ghsa":[{"id":"GHSA-29gp-92wp-94q8","title":"react-dev-utils on Windows vulnerable to Remote Code Execution","description":"`react-dev-utils` on Windows is vulnerable to remote code execution.\n\n\n## Recommendation\n\nUpdate to one of the following versions, depending on the release line that you are using.\n- 1.0.4\n- 2.0.2\n- 3.1.2\n- 4.2.2\n- 5.0.2\n- 6.0.0-next.a671462c","status":"published","published":"2019-01-04T17:41:20Z","modified":"2023-01-27T05:02:43Z","cwes":["CWE-78"],"updated_at":"2026-11-02T14:36:19.144959Z"}],"nvd":[{"id":"CVE-2018-6342","description":"react-dev-utils on Windows allows developers to run a local webserver for accepting various commands, including a command to launch an editor. The input to that command was not properly sanitized, allowing an attacker who can make a network request to the server (either via CSRF or by direct request) to execute arbitrary commands on the targeted system. This issue affects multiple branches: 1.x.x prior to 1.0.4, 2.x.x prior to 2.0.2, 3.x.x prior to 3.1.2, 4.x.x prior to 4.2.2, and 5.x.x prior to 5.0.2.","status":"published","published":"2018-12-31T22:29:00.467Z","modified":"2026-06-17T02:01:42.19Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"secondary"},{"version":"2.0","score":10,"vector":"AV:N/AC:L/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-78"],"updated_at":"2026-11-02T14:04:52.056758Z"}],"osv":[{"id":"CVE-2018-6342","description":"react-dev-utils on Windows allows developers to run a local webserver for accepting various commands, including a command to launch an editor. The input to that command was not properly sanitized, allowing an attacker who can make a network request to the server (either via CSRF or by direct request) to execute arbitrary commands on the targeted system. This issue affects multiple branches: 1.x.x prior to 1.0.4, 2.x.x prior to 2.0.2, 3.x.x prior to 3.1.2, 4.x.x prior to 4.2.2, and 5.x.x prior to 5.0.2.","status":"published","published":"2018-12-31T22:29:00.467Z","modified":"2026-10-20T10:49:55.903615423Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:44:09.74357Z"},{"id":"GHSA-29gp-92wp-94q8","title":"react-dev-utils on Windows vulnerable to Remote Code Execution","description":"`react-dev-utils` on Windows is vulnerable to remote code execution.\n\n\n## Recommendation\n\nUpdate to one of the following versions, depending on the release line that you are using.\n- 1.0.4\n- 2.0.2\n- 3.1.2\n- 4.2.2\n- 5.0.2\n- 6.0.0-next.a671462c","status":"published","published":"2019-01-04T17:41:20Z","modified":"2023-11-08T04:00:21.268782Z","cwes":["CWE-78"],"updated_at":"2026-11-02T15:46:33.956911Z"}]}}