decompress: Archive extraction can create files and links outside the target directory

{
  "id": "1cb8e8655380d6c90fe4d477c93723796f071a39049d076fbf4fbab3cd525722",
  "url": "https://osv.dev/vulnerability/CVE-2026-53486",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "decompress: Archive extraction can create files and links outside the target directory",
    "summary": "The decompress package for Node.js extracts archives. Prior to 10.2.1 and 11.1.3, archive extraction can create files and links outside the target directory. When extracting an archive to a directory, a crafted archive can read or write files outside that directory because hardlink and symlink entries are created without checking where targets point, path containment used a string prefix comparison, and file modes failed to remove setuid, setgid, or sticky bits. This issue is fixed in @xhmikosr/decompress versions 10.2.1 and 11.1.3.",
    "evidence": "osv:CVE-2026-53486",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2026-53486",
      "aliases": [
        "CVE-2026-53486",
        "GHSA-mp2f-45pm-3cg9"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/xhmikosr/decompress",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "742ab1a8fe0e49d1437069cabe394ff89d41ae01"
                },
                {
                  "introduced": "bbaa8c6c31bab65fea6b8a85f12ffb4ead6845f7"
                },
                {
                  "fixed": "921c957ca09437139599d86d5f4aa963f1b3fa82"
                },
                {
                  "fixed": "281cefa00cd4275c10479bc5f1abba6b14dee8bd"
                },
                {
                  "fixed": "60b5299402e72b0b53ca2e55222e9a1ccb44afae"
                },
                {
                  "fixed": "9fcda4b0a66ca22dc8d337f9b0e7c30293c5fb89"
                },
                {
                  "fixed": "aca5aac415dc04a6fae5200e51368cff436a09dd"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "10.2.1"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StringRangeExpression"
                  },
                  {
                    "range": [
                      {
                        "introduced": "11.0.0"
                      },
                      {
                        "fixed": "11.1.3"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StringRangeExpression"
                  },
                  {
                    "range": [
                      {
                        "fixed": "281cefa00cd4275c10479bc5f1abba6b14dee8bd"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "fixed": "60b5299402e72b0b53ca2e55222e9a1ccb44afae"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "fixed": "9fcda4b0a66ca22dc8d337f9b0e7c30293c5fb89"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "fixed": "aca5aac415dc04a6fae5200e51368cff436a09dd"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "fixed": "742ab1a8fe0e49d1437069cabe394ff89d41ae01"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "v10.2.1"
                  },
                  {
                    "range": [
                      {
                        "fixed": "921c957ca09437139599d86d5f4aa963f1b3fa82"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "v11.1.3"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v10.2.0",
            "v11.1.2",
            "v11.1.1",
            "v11.1.0",
            "v11.0.2",
            "v11.0.1",
            "v11.0.0",
            "v10.1.0",
            "v10.0.1",
            "v10.0.0",
            "v9.0.1",
            "v9.0.0",
            "v8.0.0",
            "v7.0.0",
            "v6.0.0",
            "v5.0.0",
            "v4.2.1",
            "v4.2.0",
            "v4.1.0",
            "v4.0.0",
            "v3.0.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-53486.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:51.079163877Z",
      "provider": "osv",
      "references": [
        "https://github.com/XhmikosR/decompress/releases/tag/v10.2.1",
        "https://github.com/XhmikosR/decompress/releases/tag/v11.1.3",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53486.json",
        "https://github.com/XhmikosR/decompress/security/advisories/GHSA-mp2f-45pm-3cg9",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-53486",
        "https://github.com/XhmikosR/decompress/commit/281cefa00cd4275c10479bc5f1abba6b14dee8bd",
        "https://github.com/XhmikosR/decompress/commit/60b5299402e72b0b53ca2e55222e9a1ccb44afae",
        "https://github.com/XhmikosR/decompress/commit/9fcda4b0a66ca22dc8d337f9b0e7c30293c5fb89",
        "https://github.com/XhmikosR/decompress/commit/aca5aac415dc04a6fae5200e51368cff436a09dd"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-22",
          "CWE-59",
          "CWE-732"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53486.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-53486",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 519911,
  "published_at": "2026-07-14T20:07:14.19+00:00"
}