id: PYSEC-2026-328
published: "2026-06-29T11:50:49.713473Z"
modified: "2026-07-01T20:22:51.403723Z"
aliases:
- CVE-2026-42196
- GHSA-67qg-7284-2277
summary: django-s3file is vulnerable to relative path traversal
details: "### Impact\n`S3FileMiddleware` is vulnerable to relative path traversal attacks, where an attacker can use a modified request to escape pre-signed upload locations and have the Django application load files from random locations into `request.FILES`\n\nDepending on how files are handled, this may lead to confidentiality and integrity issues.\n\n### Patches\nDjango-S3File urges all users to update to a patched version >=7.0.2."
affected:
- package:
    name: django-s3file
    ecosystem: PyPI
    purl: pkg:pypi/django-s3file
  ranges:
  - type: ECOSYSTEM
    events:
    - introduced: "0"
    - fixed: 7.0.2
  versions:
  - 0.1.0
  - 0.1.1
  - 0.1.10
  - 0.1.11
  - 0.1.12
  - 0.1.13
  - 0.1.14
  - 0.1.15
  - 0.1.16
  - 0.1.17
  - 0.1.18
  - 0.1.19
  - 0.1.2
  - 0.1.20
  - 0.1.21
  - 0.1.22
  - 0.1.23
  - 0.1.3
  - 0.1.4
  - 0.1.5
  - 0.1.6
  - 0.1.7
  - 0.1.8
  - 0.1.9
  - 0.2.0
  - 0.3.0
  - 0.3.1
  - 0.3.2
  - 0.3.3
  - 0.3.4
  - 0.3.5
  - 0.3.6
  - 0.3.7
  - 0.4.0
  - 0.4.1
  - 0.5.0
  - 0.5.1
  - 0.5.2
  - 0.5.3
  - 0.5.4
  - 0.6.0
  - 0.6.1
  - 0.6.2
  - 1.0.0
  - 1.0.1
  - 1.0.2
  - 1.1.0
  - 1.2.0
  - 1.2.1
  - 2.0.0
  - 3.0.0
  - 3.0.1
  - 3.0.2
  - 3.0.3
  - 3.0.4
  - 3.0.5
  - 4.0.0
  - 4.0.1
  - 4.0.2
  - 4.1.0
  - 4.2.0
  - 5.0.0
  - 5.0.1
  - 5.0.2
  - 5.0.4
  - 5.0.5
  - 5.0.6
  - 5.1.0
  - 5.1.1
  - 5.1.2
  - 5.1.3
  - 5.2.0
  - 5.3.0
  - 5.4.0
  - 5.5.0
  - 5.5.1
  - 5.5.2
  - 5.5.3
  - 5.5.4
  - 5.5.5
  - 5.5.7
  - 6.0.1
  - 7.0.0
  - 7.0.1
references:
- type: WEB
  url: https://github.com/codingjoe/django-s3file/security/advisories/GHSA-67qg-7284-2277
- type: ADVISORY
  url: https://nvd.nist.gov/vuln/detail/CVE-2026-42196
- type: PACKAGE
  url: https://github.com/codingjoe/django-s3file
- type: PACKAGE
  url: https://pypi.org/project/django-s3file
- type: ADVISORY
  url: https://github.com/advisories/GHSA-67qg-7284-2277
severity:
- type: CVSS_V4
  score: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N