nodejs — security advisory

{
  "id": "671255fd9d82ead66551ad70cba0177bc15a7fbc25bdd34a6d136b7d7cfe4d3f",
  "url": "https://osv.dev/vulnerability/ALPINE-CVE-2026-106073",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "ALPINE-CVE-2026-106073",
    "summary": "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()`. As 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. This vulnerability affects Node.js **26.x**, **24.x**, and **22.x**.",
    "evidence": "osv:ALPINE-CVE-2026-106073",
    "products": [
      {
        "name": {
          "value": "nodejs",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "22.23.4-r0",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "nodejs",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "22.23.4-r0",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "nodejs",
          "evidence": "/affected/2/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "24.22.1-r0",
            "evidence": "/affected/2/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "nodejs",
          "evidence": "/affected/3/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "24.22.1-r0",
            "evidence": "/affected/3/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "low",
    "structured": {
      "id": "ALPINE-CVE-2026-106073",
      "aliases": [
        "ALPINE-CVE-2026-106073"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "22.23.4-r0"
                }
              ]
            }
          ],
          "package": {
            "name": "nodejs",
            "purl": "pkg:apk/alpine/nodejs?arch=source",
            "ecosystem": "Alpine:v3.21"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-106073.json"
          },
          "ecosystem_specific": {}
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "22.23.4-r0"
                }
              ]
            }
          ],
          "package": {
            "name": "nodejs",
            "purl": "pkg:apk/alpine/nodejs?arch=source",
            "ecosystem": "Alpine:v3.22"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-106073.json"
          },
          "ecosystem_specific": {}
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "24.22.1-r0"
                }
              ]
            }
          ],
          "package": {
            "name": "nodejs",
            "purl": "pkg:apk/alpine/nodejs?arch=source",
            "ecosystem": "Alpine:v3.23"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-106073.json"
          },
          "ecosystem_specific": {}
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "24.22.1-r0"
                }
              ]
            }
          ],
          "package": {
            "name": "nodejs",
            "purl": "pkg:apk/alpine/nodejs?arch=source",
            "ecosystem": "Alpine:v3.24"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-106073.json"
          },
          "ecosystem_specific": {}
        }
      ],
      "modified": "2026-10-24T09:30:02.700489345Z",
      "provider": "osv",
      "upstream": [
        "CVE-2026-106073"
      ],
      "references": [
        "https://security.alpinelinux.org/vuln/CVE-2026-106073"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2026-106073",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 428929,
  "published_at": "2026-10-23T17:17:20.343+00:00"
}