{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "3.10.21"
              },
              {
                "introduced": "3.11.0"
              },
              {
                "fixed": "3.11.16"
              },
              {
                "introduced": "3.12.0"
              },
              {
                "fixed": "3.12.14"
              },
              {
                "introduced": "3.13.0"
              },
              {
                "fixed": "3.13.14"
              },
              {
                "introduced": "3.14.0"
              },
              {
                "fixed": "3.14.6"
              },
              {
                "introduced": "3.15.0a1"
              },
              {
                "fixed": "3.15.0b2"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "introduced": "deaf509e8fc6e0363bd6f26d52ad42f976ec42f2"
            },
            {
              "introduced": "0fb18b02c8ad56299d6a2910be0bab8ad601ef24"
            },
            {
              "introduced": "60403a5409ff2c3f3b07dd2ca91a7a3e096839c7"
            },
            {
              "introduced": "ebf955df7a89ed0c7968f79faec1de49f61ed7cb"
            },
            {
              "introduced": "f31a89bb901067dd105b00cfa90523cf7ffdbbdd"
            },
            {
              "fixed": "3a19c2f0b3e91ce8f23d0cc64d4c9ee557823f24"
            },
            {
              "fixed": "41388c9cb160d0886d5ca00d2e6c8782608a4549"
            },
            {
              "fixed": "2abcf904b8dac8c999d2b3aac76681abb333798a"
            },
            {
              "fixed": "fd17997c3866d61e0e7bd8201b1d8f35b40a40bd"
            },
            {
              "fixed": "c63aec69bd59c55314c06c23f4c22c03de76fe45"
            },
            {
              "fixed": "94a64bbc6ce89644cf02b82c723d9cc37f6a1870"
            },
            {
              "fixed": "0478bd83d82b255e0f29f613367a59d261e7eaa2"
            },
            {
              "fixed": "0d28f5e46e151718972dfabd91205444d0037b6d"
            },
            {
              "fixed": "10a13bee3c24f9c62b602e696334ff2272a40efc"
            },
            {
              "fixed": "578411982c16f753f4893532510099ef665117da"
            },
            {
              "fixed": "5cf47a248c35c375d610b87b2f72fd1ed454b558"
            },
            {
              "fixed": "74cca9a92fb7d653e404843a56b8bdc7b0afdbbf"
            },
            {
              "fixed": "c063191cb7f9170f9565e305f8aa2b79ab2bf609"
            }
          ],
          "repo": "https://github.com/python/cpython",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "PSF",
    "cwe_ids": [
      "CWE-22"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/7xxx/CVE-2026-7774.json"
  },
  "details": "tarfile.data_filter could be bypassed using crafted link entries, including symlinks with empty or directory-like names, to redirect later archive members outside the intended extraction directory. This allowed a malicious tar archive to cause tarfile.extractall() to write files outside the destination directory, subject to the permissions of the extracting process.",
  "id": "CVE-2026-7774",
  "modified": "2026-08-15T04:07:20.722937471Z",
  "published": "2026-06-04T14:21:23.904Z",
  "references": [
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2026/06/04/9"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/7xxx/CVE-2026-7774.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://mail.python.org/archives/list/security-announce@python.org/thread/4FU62L2M6RMMHT2QPGQNPEHHUND7CEX5/"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-7774"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/python/cpython/issues/149486"
    },
    {
      "type": "FIX",
      "url": "https://github.com/python/cpython/commit/0478bd83d82b255e0f29f613367a59d261e7eaa2"
    },
    {
      "type": "FIX",
      "url": "https://github.com/python/cpython/commit/0d28f5e46e151718972dfabd91205444d0037b6d"
    },
    {
      "type": "FIX",
      "url": "https://github.com/python/cpython/commit/10a13bee3c24f9c62b602e696334ff2272a40efc"
    },
    {
      "type": "FIX",
      "url": "https://github.com/python/cpython/commit/578411982c16f753f4893532510099ef665117da"
    },
    {
      "type": "FIX",
      "url": "https://github.com/python/cpython/commit/5cf47a248c35c375d610b87b2f72fd1ed454b558"
    },
    {
      "type": "FIX",
      "url": "https://github.com/python/cpython/commit/74cca9a92fb7d653e404843a56b8bdc7b0afdbbf"
    },
    {
      "type": "FIX",
      "url": "https://github.com/python/cpython/commit/c063191cb7f9170f9565e305f8aa2b79ab2bf609"
    },
    {
      "type": "FIX",
      "url": "https://github.com/python/cpython/pull/149487"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/python/cpython"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "tarfile.data_filter path traversal bypass allows writing outside the extraction directory"
}