{
  "schemaVersion": 1,
  "attribution": [
    {
      "source": "CISA Known Exploited Vulnerabilities",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "licence": "US government work"
    },
    {
      "source": "GitHub Advisory Database",
      "url": "https://github.com/advisories",
      "licence": "CC BY 4.0"
    },
    {
      "source": "Have I Been Pwned",
      "url": "https://haveibeenpwned.com/",
      "licence": "CC BY 4.0"
    },
    {
      "source": "CVE Program (CVE records)",
      "url": "https://www.cve.org/Legal/TermsOfUse",
      "licence": "CVE Terms of Use",
      "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.",
      "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss/",
      "licence": "free to use; FIRST requests attribution"
    }
  ],
  "record": {
    "id": "CVE-2026-87910",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-87910",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-09-11T17:27:04.339Z",
    "updatedAt": "2026-10-22T00:31:28.666Z",
    "importedAt": "2026-10-24T01:58:35.090Z",
    "snapshot": {
      "id": "cve_2026-10-24_midnight_baseline",
      "at": "2026-10-24T00:00:00.000Z",
      "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z"
    },
    "facts": {
      "title": "tarfile hardlink fallback ignores custom extraction filter rejection via None",
      "summary": "When tarfile extracts a link on a system that doesn't support links, it falls back to extracting a member from the archive. In this case, the filter function is run twice: once for the extracted member, and once with name set to the location of the link. For one of the calls, the return value was ignored. Instead, the member should be skipped if either call returns None.",
      "affected": [
        {
          "vendor": "Python Software Foundation",
          "product": "CPython",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "0",
              "status": "affected",
              "versionType": "python",
              "lessThan": "3.10.22"
            },
            {
              "version": "3.11.0",
              "status": "affected",
              "versionType": "python",
              "lessThan": "3.11.17"
            },
            {
              "version": "3.12.0",
              "status": "affected",
              "versionType": "python",
              "lessThan": "3.12.15"
            },
            {
              "version": "3.13.0",
              "status": "affected",
              "versionType": "python",
              "lessThan": "3.13.16"
            },
            {
              "version": "3.14.0",
              "status": "affected",
              "versionType": "python",
              "lessThan": "3.14.9"
            },
            {
              "version": "3.15.0a1",
              "status": "affected",
              "versionType": "python",
              "lessThan": "3.15.0rc3"
            }
          ]
        }
      ]
    }
  }
}