{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": "cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:*",
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "20.0.0"
              },
              {
                "introduced": "25.0.0"
              },
              {
                "last_affected": "25.8.1"
              }
            ],
            "source": "CPE_RANGE"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "e7618fb5a5fc25d76b6474e2a6607f04fd6f10e0"
            },
            {
              "introduced": "0b3a10d4c8ba5e15429287e725d22615be896e95"
            },
            {
              "last_affected": "2ea7a7b67c3d698a0e80d2591365e2dc5c5f7a81"
            }
          ],
          "repo": "https://github.com/nodejs/node",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "hackerone",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/21xxx/CVE-2026-21711.json",
    "unresolved_ranges": [
      {
        "extracted_events": [
          {
            "introduced": "25.8.1"
          },
          {
            "last_affected": "25.8.1"
          },
          {
            "introduced": "4.0"
          },
          {
            "fixed": "4.*"
          },
          {
            "introduced": "5.0"
          },
          {
            "fixed": "5.*"
          },
          {
            "introduced": "6.0"
          },
          {
            "fixed": "6.*"
          },
          {
            "introduced": "7.0"
          },
          {
            "fixed": "7.*"
          },
          {
            "introduced": "8.0"
          },
          {
            "fixed": "8.*"
          },
          {
            "introduced": "9.0"
          },
          {
            "fixed": "9.*"
          },
          {
            "introduced": "10.0"
          },
          {
            "fixed": "10.*"
          },
          {
            "introduced": "11.0"
          },
          {
            "fixed": "11.*"
          },
          {
            "introduced": "12.0"
          },
          {
            "fixed": "12.*"
          },
          {
            "introduced": "13.0"
          },
          {
            "fixed": "13.*"
          },
          {
            "introduced": "14.0"
          },
          {
            "fixed": "14.*"
          },
          {
            "introduced": "15.0"
          },
          {
            "fixed": "15.*"
          },
          {
            "introduced": "16.0"
          },
          {
            "fixed": "16.*"
          },
          {
            "introduced": "17.0"
          },
          {
            "fixed": "17.*"
          },
          {
            "introduced": "18.0"
          },
          {
            "fixed": "18.*"
          },
          {
            "introduced": "19.0"
          },
          {
            "fixed": "19.*"
          }
        ],
        "source": "AFFECTED_FIELD"
      }
    ]
  },
  "details": "A flaw in Node.js Permission Model network enforcement leaves Unix Domain Socket (UDS) server operations without the required permission checks, while all comparable network paths correctly enforce them.\r\n\r\nAs a result, code running under `--permission` without `--allow-net` can create and expose local IPC endpoints, allowing communication with other processes on the same host outside of the intended network restriction boundary.\r\n\r\nThis vulnerability affects Node.js **25.x** processes using the Permission Model where `--allow-net` is intentionally omitted to restrict network access. Note that `--allow-net` is currently an experimental feature.",
  "id": "CVE-2026-21711",
  "modified": "2026-08-21T03:30:28.136632952Z",
  "published": "2026-03-30T19:07:28.526Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/21xxx/CVE-2026-21711.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-21711"
    },
    {
      "type": "ARTICLE",
      "url": "https://nodejs.org/en/blog/vulnerability/march-2026-security-releases"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L",
      "type": "CVSS_V3"
    }
  ]
}