ghsa-68pj-xrp5-vccj
Vulnerability from github
Allows the extraction filter to be ignored, allowing symlink targets to point outside the destination directory, and the modification of some file metadata.
You are affected by this vulnerability if using the tarfile module to extract untrusted tar archives using TarFile.extractall() or TarFile.extract() using the filter= parameter with a value of "data" or "tar". See the tarfile extraction filters documentation https://docs.python.org/3/library/tarfile.html#tarfile-extraction-filter for more information. Only Python versions 3.12 or later are affected by these vulnerabilities, earlier versions don't include the extraction filter feature.
Note that for Python 3.14 or later the default value of filter= changed from "no filtering" to `"data", so if you are relying on this new default behavior then your usage is also affected.
Note that none of these vulnerabilities significantly affect the installation of source distributions which are tar archives as source distributions already allow arbitrary code execution during the build process. However when evaluating source distributions it's important to avoid installing source distributions with suspicious links.
{
"affected": [],
"aliases": [
"CVE-2025-4330"
],
"database_specific": {
"cwe_ids": [
"CWE-22"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-06-03T13:15:20Z",
"severity": "HIGH"
},
"details": "Allows the extraction filter to be ignored, allowing symlink targets to point outside the destination directory, and the modification of some file metadata.\n\n\nYou are affected by this vulnerability if using the tarfile\u00a0module to extract untrusted tar archives using TarFile.extractall()\u00a0or TarFile.extract()\u00a0using the filter=\u00a0parameter with a value of \"data\"\u00a0or \"tar\". See the tarfile extraction filters documentation https://docs.python.org/3/library/tarfile.html#tarfile-extraction-filter \u00a0for more information. Only Python versions 3.12 or later are affected by these vulnerabilities, earlier versions don\u0027t include the extraction filter feature.\n\nNote that for Python 3.14 or later the default value of filter=\u00a0changed from \"no filtering\" to `\"data\", so if you are relying on this new default behavior then your usage is also affected.\n\nNote that none of these vulnerabilities significantly affect the installation of source distributions which are tar archives as source distributions already allow arbitrary code execution during the build process. However when evaluating source distributions it\u0027s important to avoid installing source distributions with suspicious links.",
"id": "GHSA-68pj-xrp5-vccj",
"modified": "2025-06-05T15:31:31Z",
"published": "2025-06-03T15:31:25Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-4330"
},
{
"type": "WEB",
"url": "https://github.com/python/cpython/issues/135034"
},
{
"type": "WEB",
"url": "https://github.com/python/cpython/pull/135037"
},
{
"type": "WEB",
"url": "https://github.com/python/cpython/commit/19de092debb3d7e832e5672cc2f7b788d35951da"
},
{
"type": "WEB",
"url": "https://github.com/python/cpython/commit/28463dba112af719df1e8b0391c46787ad756dd9"
},
{
"type": "WEB",
"url": "https://github.com/python/cpython/commit/3612d8f51741b11f36f8fb0494d79086bac9390a"
},
{
"type": "WEB",
"url": "https://github.com/python/cpython/commit/4633f3f497b1ff70e4a35b6fe2c907cbe2d4cb2e"
},
{
"type": "WEB",
"url": "https://github.com/python/cpython/commit/9c1110ef6652687d7c55f590f909720eddde965a"
},
{
"type": "WEB",
"url": "https://github.com/python/cpython/commit/9e0ac76d96cf80b49055f6d6b9a6763fb9215c2a"
},
{
"type": "WEB",
"url": "https://github.com/python/cpython/commit/aa9eb5f757ceff461e6e996f12c89e5d9b583b01"
},
{
"type": "WEB",
"url": "https://github.com/python/cpython/commit/dd8f187d0746da151e0025c51680979ac5b4cfb1"
},
{
"type": "WEB",
"url": "https://gist.github.com/sethmlarson/52398e33eff261329a0180ac1d54f42f"
},
{
"type": "WEB",
"url": "https://mail.python.org/archives/list/security-announce@python.org/thread/MAXIJJCUUMCL7ATZNDVEGGHUMQMUUKLG"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
"type": "CVSS_V3"
}
]
}
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.