CVE-2021-21384

Что произошло

### Impact Anyone using _Shescape_ to defend against shell injection may still be vulnerable against shell injection if the attacker manages to insert a [null character](https://en.wikipedia.org/wiki/Null_character) into the payload. For example (on Windows): ```javascript const cp = require("child_process"); const shescape = require("shescape"); const nullChar = String.fromCharCode(0); const payload = "foo\" && ls -al ${nullChar} && echo \"bar"; console.log(cp.execSync(`echo ${shescape.quote(payload)}`)); // foototal 3 // drwxr-xr-x 1 owner XXXXXX 0 Mar 13 18:44 . // drwxr-xr-x 1 owner XXXXXX 0 Mar 13 00:09 .. // drwxr-xr-x 1 owner XXXXXX 0 Mar 13 18:42 folder // -rw-r--r-- 1 owner XXXXXX 0 Mar 13 18:42 file ``` ### Patches The problem has been patched in [v1.1.3](https://github.com/ericcornelissen/shescape/releases/tag/v1.1.3) which you can upgrade to now. No further changes are required. ### Workarounds Alternatively, null characters can be stripped out manually using e.g. `arg.replace(/\u{0}/gu, "")`

Что делать

dpkg-query -W -f='${Package}	${Version}\n'

rpm -qa --qf '%{NAME}\t%{VERSION}-%{RELEASE}\n'

Get-HotFix | Select-Object HotFixID, InstalledOn

Продукты и затронутые версии

{
  "status": "affected",
  "version": "*",
  "versionEndExcluding": "1.1.3"
}

CVSS: оценки и векторы

Оценка CVSS отсутствует.

Источники и ссылки

{
  "cwes": [],
  "epss": {
    "source": "epss",
    "received_at": "2026-11-04T21:06:29.007425+00:00"
  },
  "title": {
    "source": "osv",
    "received_at": "2026-11-02T12:14:37.160915+00:00"
  },
  "scores": [],
  "affected": [
    "osv"
  ],
  "published": {
    "source": "osv",
    "received_at": "2026-11-02T12:14:37.160915+00:00"
  },
  "solutions": [],
  "percentile": {
    "source": "epss",
    "received_at": "2026-11-04T21:06:29.007425+00:00"
  },
  "references": [
    "osv"
  ],
  "description": {
    "source": "osv",
    "received_at": "2026-11-02T12:14:37.160915+00:00"
  },
  "workarounds": [],
  "configurations": []
}

Хронология записи

1. Данные обновлены05.11.2026, 00:06
2. Данные обновлены04.11.2026, 00:06
3. Данные обновлены03.11.2026, 00:06
4. Опубликована02.11.2026, 15:14

Личная заметка и статус

Другие CVE того же продукта