file-type affected by ZIP Decompression Bomb DoS via [Content_Types].xml entry

{
  "id": "88fe39891dd9f124c6ad2a51a18a8c5b9edd375ec73c9da68c3ac9fac6f778e9",
  "url": "https://osv.dev/vulnerability/CVE-2026-32630",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "file-type affected by ZIP Decompression Bomb DoS via [Content_Types].xml entry",
    "summary": "file-type detects the file type of a file, stream, or data. From 20.0.0 to 21.3.1, a crafted ZIP file can trigger excessive memory growth during type detection in file-type when using fileTypeFromBuffer(), fileTypeFromBlob(), or fileTypeFromFile(). The ZIP inflate output limit is enforced for stream-based detection, but not for known-size inputs. As a result, a small compressed ZIP can cause file-type to inflate and process a much larger payload while probing ZIP-based formats such as OOXML. This vulnerability is fixed in 21.3.2.",
    "evidence": "osv:CVE-2026-32630",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2026-32630",
      "aliases": [
        "CVE-2026-32630",
        "GHSA-j47w-4g3g-c36v"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/sindresorhus/file-type",
              "type": "GIT",
              "events": [
                {
                  "introduced": "3945d7fa20b05d03fd0100578ca5332b7acfa467"
                },
                {
                  "fixed": "e18028c3cc19441477c3459991fee9770d88c218"
                },
                {
                  "fixed": "399b0f156063f5aeb1c124a7fd61028f3ea7c124"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:sindresorhus:file-type:*:*:*:*:*:node.js:*:*",
                    "range": [
                      {
                        "introduced": "20.0.0"
                      },
                      {
                        "fixed": "21.3.2"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "399b0f156063f5aeb1c124a7fd61028f3ea7c124"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v21.3.1",
            "v21.3.0",
            "v21.2.0",
            "v21.1.1",
            "v21.1.0",
            "v21.0.0",
            "v20.5.0",
            "v20.4.1",
            "v20.4.0",
            "v20.3.0",
            "v20.2.0",
            "v20.1.0",
            "v20.0.1",
            "v20.0.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-32630.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:22.860189090Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/32xxx/CVE-2026-32630.json",
        "https://github.com/sindresorhus/file-type/security/advisories/GHSA-j47w-4g3g-c36v",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-32630",
        "https://github.com/sindresorhus/file-type/commit/399b0f156063f5aeb1c124a7fd61028f3ea7c124"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-409"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/32xxx/CVE-2026-32630.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-32630",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 488990,
  "published_at": "2026-03-13T20:54:16.96+00:00"
}