{"id":"CVE-2022-31179","aliases":["EUVD-2022-6363","GHSA-jjc5-fp7p-6f8w"],"status":"published","title":"Insufficient escaping of line feeds for CMD in shescape","description":"Shescape is a simple shell escape package for JavaScript. Versions prior to 1.5.8 were found to be subject to code injection on windows. This impacts users that use Shescape (any API function) to escape arguments for cmd.exe on Windows An attacker can omit all arguments following their input by including a line feed character (`'\\n'`) in the payload. This bug has been patched in [v1.5.8] which you can upgrade to now. No further changes are required. Alternatively, line feed characters (`'\\n'`) can be stripped out manually or the user input can be made the last argument (this only limits the impact).","severity":{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.01424,"percentile":0.73118,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-74"],"published":"2022-07-15T21:39:14Z","modified":"2026-10-28T02:30:46Z","fixes":[{"ecosystem":"npm","package":"shescape","fixed_in":["1.5.8"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"npm","package":"shescape","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.5.8"}]}]},{"source":"osv","ecosystem":"npm","package":"shescape","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"1.5.8"}]}]}],"products":[{"vendor":"ericcornelissen","product":"shescape"},{"vendor":"shescape_project","product":"shescape"}],"references":[{"url":"https://github.com/ericcornelissen/shescape/releases/tag/v1.5.8","tags":["x_refsource_MISC","x_transferred","Release Notes","Third Party Advisory","web"]},{"url":"https://github.com/ericcornelissen/shescape/security/advisories/GHSA-jjc5-fp7p-6f8w","tags":["x_refsource_CONFIRM","x_transferred","Exploit","Patch","Third Party Advisory","advisory","web"]},{"url":"https://github.com/ericcornelissen/shescape/pull/332","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","fix","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-31179","tags":["advisory"]},{"url":"https://github.com/ericcornelissen/shescape/commit/aceea7358f7222984e21260381ebc5ec4543b76f","tags":["web"]},{"url":"https://github.com/advisories/GHSA-jjc5-fp7p-6f8w"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/31xxx/CVE-2022-31179.json","tags":["advisory"]},{"url":"https://github.com/ericcornelissen/shescape","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2022-31179","title":"Insufficient escaping of line feeds for CMD in shescape","description":"Shescape is a simple shell escape package for JavaScript. Versions prior to 1.5.8 were found to be subject to code injection on windows. This impacts users that use Shescape (any API function) to escape arguments for cmd.exe on Windows An attacker can omit all arguments following their input by including a line feed character (`'\\n'`) in the payload. This bug has been patched in [v1.5.8] which you can upgrade to now. No further changes are required. Alternatively, line feed characters (`'\\n'`) can be stripped out manually or the user input can be made the last argument (this only limits the impact).","status":"published","published":"2022-08-01T19:20:18Z","modified":"2025-04-22T17:46:08.799Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-74"],"updated_at":"2026-11-02T14:34:35.279735Z"}],"euvd":[{"id":"EUVD-2022-6363","description":"Shescape is a simple shell escape package for JavaScript. Versions prior to 1.5.8 were found to be subject to code injection on windows. This impacts users that use Shescape (any API function) to escape arguments for cmd.exe on Windows An attacker can omit all arguments following their input by including a line feed character (`'\\n'`) in the payload. This bug has been patched in [v1.5.8] which you can upgrade to now. No further changes are required. Alternatively, line feed characters (`'\\n'`) can be stripped out manually or the user input can be made the last argument (this only limits the impact).","status":"published","published":"2022-08-01T19:20:18Z","modified":"2025-04-22T17:46:08Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:H","level":"high"}],"updated_at":"2026-11-02T20:52:15.540112Z"}],"ghsa":[{"id":"GHSA-jjc5-fp7p-6f8w","title":"Shescape prior to 1.5.8 vulnerable to insufficient escaping of line feeds for CMD","description":"### Impact\n\nThis impacts users that use Shescape (any API function) to escape arguments for **cmd.exe** on **Windows**. An attacker can omit all arguments following their input by including a line feed character (`'\\n'`) in the payload. Example:\n\n```javascript\nimport cp from \"node:child_process\";\nimport * as shescape from \"shescape\";\n\n// 1. Prerequisites\nconst options = {\n  shell: \"cmd.exe\",\n};\n\n// 2. Attack\nconst payload = \"attacker\\n\";\n\n// 3. Usage\nlet escapedPayload;\nescapedPayload = shescape.escape(payload, options);\n// Or\nescapedPayload = shescape.escapeAll([payload], options)[0];\n// Or\nescapedPayload = shescape.quote(payload, options);\n// Or\nescapedPayload = shescape.quoteAll([payload], options)[0];\n\ncp.execSync(`echo Hello ${escapedPayload}! How are you doing?`, options);\n// Outputs:  \"Hello attacker\"\n```\n\n\u003e **Note**: `execSync` is just illustrative here, all of `exec`, `execFile`, `execFileSync`, `fork`, `spawn`, and `spawnSync` can be attacked using a line feed character if CMD is the shell being used.\n\n### Patches\n\nThis bug has been patched in [v1.5.8] which you can upgrade to now. No further changes are required.\n\n### Workarounds\n\nAlternatively, line feed characters (`'\\n'`) can be stripped out manually or the user input can be made the last argument (this only limits the impact).\n\n### References\n\n- https://github.com/ericcornelissen/shescape/pull/332\n- https://github.com/ericcornelissen/shescape/releases/tag/v1.5.8\n\n### For more information\n\nIf you have any questions or comments about this advisory:\n\n- Comment on https://github.com/ericcornelissen/shescape/pull/332\n- Open an issue at https://github.com/ericcornelissen/shescape/issues (_New issue_ \u003e _Question_ \u003e _Get started_)\n\n[v1.5.8]: https://github.com/ericcornelissen/shescape/releases/tag/v1.5.8\n","status":"published","published":"2022-07-15T21:39:14Z","modified":"2023-04-06T21:36:40Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:H","level":"high"}],"cwes":["CWE-74"],"updated_at":"2026-11-02T14:36:49.768564Z"}],"nvd":[{"id":"CVE-2022-31179","description":"Shescape is a simple shell escape package for JavaScript. Versions prior to 1.5.8 were found to be subject to code injection on windows. This impacts users that use Shescape (any API function) to escape arguments for cmd.exe on Windows An attacker can omit all arguments following their input by including a line feed character (`'\\n'`) in the payload. This bug has been patched in [v1.5.8] which you can upgrade to now. No further changes are required. Alternatively, line feed characters (`'\\n'`) can be stripped out manually or the user input can be made the last argument (this only limits the impact).","status":"published","published":"2022-08-01T20:15:08.177Z","modified":"2026-06-17T04:44:58.233Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:H","level":"high","assessor":"secondary"},{"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"}],"cwes":["CWE-74"],"updated_at":"2026-11-02T14:07:24.39467Z"}],"osv":[{"id":"CVE-2022-31179","title":"Insufficient escaping of line feeds for CMD in shescape","description":"Shescape is a simple shell escape package for JavaScript. Versions prior to 1.5.8 were found to be subject to code injection on windows. This impacts users that use Shescape (any API function) to escape arguments for cmd.exe on Windows An attacker can omit all arguments following their input by including a line feed character (`'\\n'`) in the payload. This bug has been patched in [v1.5.8] which you can upgrade to now. No further changes are required. Alternatively, line feed characters (`'\\n'`) can be stripped out manually or the user input can be made the last argument (this only limits the impact).","status":"published","published":"2022-08-01T19:20:18Z","modified":"2026-10-28T02:30:46.089776024Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:H","level":"high"}],"cwes":["CWE-74"],"updated_at":"2026-11-02T15:44:25.516981Z"},{"id":"GHSA-jjc5-fp7p-6f8w","title":"Shescape prior to 1.5.8 vulnerable to insufficient escaping of line feeds for CMD","description":"### Impact\n\nThis impacts users that use Shescape (any API function) to escape arguments for **cmd.exe** on **Windows**. An attacker can omit all arguments following their input by including a line feed character (`'\\n'`) in the payload. Example:\n\n```javascript\nimport cp from \"node:child_process\";\nimport * as shescape from \"shescape\";\n\n// 1. Prerequisites\nconst options = {\n  shell: \"cmd.exe\",\n};\n\n// 2. Attack\nconst payload = \"attacker\\n\";\n\n// 3. Usage\nlet escapedPayload;\nescapedPayload = shescape.escape(payload, options);\n// Or\nescapedPayload = shescape.escapeAll([payload], options)[0];\n// Or\nescapedPayload = shescape.quote(payload, options);\n// Or\nescapedPayload = shescape.quoteAll([payload], options)[0];\n\ncp.execSync(`echo Hello ${escapedPayload}! How are you doing?`, options);\n// Outputs:  \"Hello attacker\"\n```\n\n\u003e **Note**: `execSync` is just illustrative here, all of `exec`, `execFile`, `execFileSync`, `fork`, `spawn`, and `spawnSync` can be attacked using a line feed character if CMD is the shell being used.\n\n### Patches\n\nThis bug has been patched in [v1.5.8] which you can upgrade to now. No further changes are required.\n\n### Workarounds\n\nAlternatively, line feed characters (`'\\n'`) can be stripped out manually or the user input can be made the last argument (this only limits the impact).\n\n### References\n\n- https://github.com/ericcornelissen/shescape/pull/332\n- https://github.com/ericcornelissen/shescape/releases/tag/v1.5.8\n\n### For more information\n\nIf you have any questions or comments about this advisory:\n\n- Comment on https://github.com/ericcornelissen/shescape/pull/332\n- Open an issue at https://github.com/ericcornelissen/shescape/issues (_New issue_ \u003e _Question_ \u003e _Get started_)\n\n[v1.5.8]: https://github.com/ericcornelissen/shescape/releases/tag/v1.5.8\n","status":"published","published":"2022-07-15T21:39:14Z","modified":"2023-11-08T04:09:28.955315Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:H","level":"high"}],"cwes":["CWE-74"],"updated_at":"2026-11-02T15:46:50.687609Z"}]}}