{
  "cve": [
    "CVE-2026-106073"
  ],
  "vulnerable": "22.x || 24.x || 26.x",
  "patched": "^22.23.4 || ^24.22.1 || ^26.12.1",
  "ref": "https://nodejs.org/en/blog/vulnerability/october-2026-security-releases",
  "description": "Permission Model bypass with fs.realpathSync",
  "overview": "A flaw in Node.js Permission Model filesystem enforcement leaves `fs.realpathSync()` without the required read permission checks. This is an incomplete fix of CVE-2026-21715, which only covered `fs.realpathSync.native()`.\n\nAs a result, code running under `--permission` with restricted `--allow-fs-read` can still use `fs.realpathSync()` to check file existence, resolve symlink targets, and enumerate filesystem paths outside of permitted directories.\n\nThis vulnerability affects Node.js **26.x**, **24.x**, and **22.x**.",
  "affectedEnvironments": [
    "all"
  ],
  "severity": "low"
}