id: PYSEC-2023-100
modified: 2023-07-11T16:37:11.407533Z
published: 2023-07-03T13:15:00Z
aliases:
- CVE-2023-36053
- GHSA-jh3w-4vvf-mjgr
details: In Django 3.2 before 3.2.20, 4 before 4.1.10, and 4.2 before 4.2.3, EmailValidator
  and URLValidator are subject to a potential ReDoS (regular expression denial of
  service) attack via a very large number of domain name labels of emails and URLs.
affected:
- package:
    ecosystem: PyPI
    name: django
    purl: pkg:pypi/django
  ranges:
  - type: ECOSYSTEM
    events:
    - introduced: "4.2"
    - fixed: 4.2.3
    - introduced: "4.0"
    - fixed: 4.1.10
    - introduced: "3.2"
    - fixed: 3.2.20
  versions:
  - "3.2"
  - 3.2.1
  - 3.2.10
  - 3.2.11
  - 3.2.12
  - 3.2.13
  - 3.2.14
  - 3.2.15
  - 3.2.16
  - 3.2.17
  - 3.2.18
  - 3.2.19
  - 3.2.2
  - 3.2.3
  - 3.2.4
  - 3.2.5
  - 3.2.6
  - 3.2.7
  - 3.2.8
  - 3.2.9
  - "4.0"
  - 4.0.1
  - 4.0.10
  - 4.0.2
  - 4.0.3
  - 4.0.4
  - 4.0.5
  - 4.0.6
  - 4.0.7
  - 4.0.8
  - 4.0.9
  - "4.1"
  - 4.1.1
  - 4.1.2
  - 4.1.3
  - 4.1.4
  - 4.1.5
  - 4.1.6
  - 4.1.7
  - 4.1.8
  - 4.1.9
  - 4.1a1
  - 4.1b1
  - 4.1rc1
  - "4.2"
  - 4.2.1
  - 4.2.2
references:
- type: FIX
  url: https://www.djangoproject.com/weblog/2023/jul/03/security-releases/
- type: ADVISORY
  url: https://www.djangoproject.com/weblog/2023/jul/03/security-releases/
- type: WEB
  url: https://docs.djangoproject.com/en/4.2/releases/security/
- type: WEB
  url: https://groups.google.com/forum/#!forum/django-announce
- type: ADVISORY
  url: https://github.com/advisories/GHSA-jh3w-4vvf-mjgr