GHSA-8CJ5-5RVV-WF4V

Vulnerability from github – Published: 2025-06-03 06:14 – Updated: 2025-11-03 21:33
VLAI
Summary
tar-fs can extract outside the specified dir with a specific tarball
Details

Impact

v3.0.8, v2.1.2, v1.16.4 and below

Patches

Has been patched in 3.0.9, 2.1.3, and 1.16.5

Workarounds

You can use the ignore option to ignore non files/directories.

  ignore (_, header) {
    // pass files & directories, ignore e.g. symlinks
    return header.type !== 'file' && header.type !== 'directory'
  }

Credit

Thank you Caleb Brown from Google Open Source Security Team for reporting this in detail.

Severity
8.7 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
Show details on source website
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{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "tar-fs"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.16.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "npm",
        "name": "tar-fs"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.0.0"
            },
            {
              "fixed": "2.1.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "npm",
        "name": "tar-fs"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.0.0"
            },
            {
              "fixed": "3.0.9"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2025-48387"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-22"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2025-06-03T06:14:25Z",
    "nvd_published_at": "2025-06-02T20:15:22Z",
    "severity": "HIGH"
  },
  "details": "### Impact\n v3.0.8, v2.1.2, v1.16.4 and below\n\n### Patches\nHas been patched in 3.0.9, 2.1.3, and 1.16.5\n\n### Workarounds\nYou can use the ignore option to ignore non files/directories.\n\n```js\n  ignore (_, header) {\n    // pass files \u0026 directories, ignore e.g. symlinks\n    return header.type !== \u0027file\u0027 \u0026\u0026 header.type !== \u0027directory\u0027\n  }\n```\n\n### Credit\nThank you Caleb Brown from Google Open Source Security Team for reporting this in detail.",
  "id": "GHSA-8cj5-5rvv-wf4v",
  "modified": "2025-11-03T21:33:59Z",
  "published": "2025-06-03T06:14:25Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/google/security-research/security/advisories/GHSA-xrg4-qp5w-2c3w"
    },
    {
      "type": "WEB",
      "url": "https://github.com/mafintosh/tar-fs/security/advisories/GHSA-8cj5-5rvv-wf4v"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-48387"
    },
    {
      "type": "WEB",
      "url": "https://github.com/mafintosh/tar-fs/commit/647447b572bc135c41035e82ca7b894f02b17f0f"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/mafintosh/tar-fs"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2025/06/msg00012.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "tar-fs can extract outside the specified dir with a specific tarball"
}



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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
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  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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