{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": "cpe:2.3:a:archive\\:\\:tar_project:archive\\:\\:tar:*:*:*:*:*:perl:*:*",
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "3.08"
              }
            ],
            "source": [
              "CPE_RANGE",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "56670a5136ae16cacdca3ccd0735de044af01b48"
            },
            {
              "fixed": "17c873492a05eddc0de18c1485e0b2cccd5a9158"
            }
          ],
          "repo": "https://github.com/jib/archive-tar-new",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "CPANSec",
    "cwe_ids": [
      "CWE-59",
      "CWE-732"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/42xxx/CVE-2026-42497.json"
  },
  "details": "Archive::Tar versions before 3.08 for Perl extract hardlinks to attacker controlled paths outside the extraction directory.\n\n_make_special_file() passes the tar header's linkname to link() without validating it against absolute paths or .. segments, creating a hardlink that shares the victim file's inode.\n\nA subsequent write through the extracted name modifies the victim file, and the post-extraction chmod, chown, and utime block in _extract_file() (guarded only against symlinks via -l) applies the tar header's mode, owner, and timestamps to the shared inode during extraction alone.",
  "id": "CVE-2026-42497",
  "modified": "2026-07-15T01:49:03.863558994Z",
  "published": "2026-05-26T00:17:50.656Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://cpan.org/modules"
    },
    {
      "type": "WEB",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-42496"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/42xxx/CVE-2026-42497.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://metacpan.org/release/BINGOS/Archive-Tar-3.08/changes"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-42497"
    },
    {
      "type": "FIX",
      "url": "https://github.com/jib/archive-tar-new/commit/17c873492a05eddc0de18c1485e0b2cccd5a9158.patch"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/jib/archive-tar-new"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Archive::Tar versions before 3.08 for Perl extract hardlinks to attacker controlled paths outside the extraction directory"
}