{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "0.18.2"
              }
            ],
            "source": [
              "DESCRIPTION",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "e622e68fb008b365b8a8def1880282e74bab9a6c"
            },
            {
              "fixed": "6c78164e7bfa28b8b3d6f247b87e560692e3c8ba"
            }
          ],
          "repo": "https://github.com/frostming/unearth",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
      "CWE-22"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/73xxx/CVE-2026-73030.json"
  },
  "details": "unearth through 0.18.2, fixed in commit 6c78164, contains a path traversal vulnerability in the is_within_directory function that fails to normalize paths before validation, allowing ../ sequences to bypass directory containment checks. Attackers can supply malicious tar archives with symlink members or traversal sequences to write files to arbitrary filesystem locations accessible to the process.",
  "id": "CVE-2026-73030",
  "modified": "2026-08-13T03:52:07.738560083Z",
  "published": "2026-08-10T20:09:44.641Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/73xxx/CVE-2026-73030.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-73030"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/unearth-path-traversal-via-unnormalized-paths-and-symlink-escape"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/frostming/unearth/pull/181"
    },
    {
      "type": "FIX",
      "url": "https://github.com/frostming/unearth/commit/6c78164e7bfa28b8b3d6f247b87e560692e3c8ba"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/frostming/unearth"
    },
    {
      "type": "EVIDENCE",
      "url": "https://github.com/frostming/unearth/issues/180"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "unearth 0.18.2 Path Traversal via Unnormalized Paths and Symlink Escape"
}