---
id: CVE-2024-12718
title: Allows modifying some file metadata (e.g
summary: "Allows modifying some file metadata (e.g. last modified) with filter=\"data\"\_or file permissions (chmod) with filter=\"tar\"\_of files outside the extraction directory.\nYou are affected by this vulnerability if using the tarfile\_module to ex…"
severity: medium
cvss: 5.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N'
cwe:
  - CWE-22
published: '2025-06-03'
updated: '2026-07-30'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2024-12718'
references:
  - url: 'https://gist.github.com/sethmlarson/52398e33eff261329a0180ac1d54f42f'
    label: cna@python.org
  - url: >-
      https://github.com/python/cpython/commit/19de092debb3d7e832e5672cc2f7b788d35951da
    label: cna@python.org
  - url: >-
      https://github.com/python/cpython/commit/28463dba112af719df1e8b0391c46787ad756dd9
    label: cna@python.org
  - url: >-
      https://github.com/python/cpython/commit/3612d8f51741b11f36f8fb0494d79086bac9390a
    label: cna@python.org
  - url: >-
      https://github.com/python/cpython/commit/4633f3f497b1ff70e4a35b6fe2c907cbe2d4cb2e
    label: cna@python.org
  - url: >-
      https://github.com/python/cpython/commit/9c1110ef6652687d7c55f590f909720eddde965a
    label: cna@python.org
  - url: >-
      https://github.com/python/cpython/commit/9e0ac76d96cf80b49055f6d6b9a6763fb9215c2a
    label: cna@python.org
  - url: >-
      https://github.com/python/cpython/commit/aa9eb5f757ceff461e6e996f12c89e5d9b583b01
    label: cna@python.org
  - url: >-
      https://github.com/python/cpython/commit/dd8f187d0746da151e0025c51680979ac5b4cfb1
    label: cna@python.org
  - url: 'https://github.com/python/cpython/issues/127987'
    label: cna@python.org
  - url: 'https://github.com/python/cpython/issues/135034'
    label: cna@python.org
  - url: 'https://github.com/python/cpython/pull/135037'
    label: cna@python.org
  - url: >-
      https://mail.python.org/archives/list/security-announce@python.org/thread/MAXIJJCUUMCL7ATZNDVEGGHUMQMUUKLG/
    label: cna@python.org
  - url: 'https://github.com/python/cpython/issues/127987'
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
epss: 0.00768
epssPercentile: 0.53671
ingestedAt: '2026-07-31T06:58:50.793Z'
---

## Overview

Allows modifying some file metadata (e.g. last modified) with filter="data" or file permissions (chmod) with filter="tar" of files outside the extraction directory.
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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.