CVE-2023-36053

· HIGHModified

← All CVEs

CVSS v3.1

7.5

EPSS

2.98%

Published

Jul 3, 2023

Modified

Nov 4, 2025

Public PoC / Exploit (1)

All weaponized →

TrickestTrickest PoC index

Links to public security research (Exploit-DB, Nuclei, Trickest, GitHub) for defensive use only.

Description

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.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weaknesses (CWE)

CWE-1333CWE-1333

Affected Products (8)

djangoproject · django (up to 3.2.20)vulnerable

djangoproject · django (up to 4.1.10)vulnerable

djangoproject · django (up to 4.2.3)vulnerable

debian · debian_linuxvulnerable

fedoraproject · fedoravulnerable

References (17)

https://docs.djangoproject.com/en/4.2/releases/security/

Release Notes

https://groups.google.com/forum/#%21forum/django-announce

Permissions Required

https://lists.debian.org/debian-lts-announce/2023/07/msg00022.html

Mailing List

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NRDGTUN4LTI6HG4TWR3JYLSFVXPZT42A/

Mailing ListThird Party Advisory

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XG5DYKPNDCEHJQ3TKPJQO7QGSR4FAYMS/

Mailing ListThird Party Advisory

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZQJOMNRMVPCN5WMIZ7YSX5LQ7IR2NY4D/

https://www.debian.org/security/2023/dsa-5465

Third Party Advisory

https://www.djangoproject.com/weblog/2023/jul/03/security-releases/

PatchVendor Advisory

https://docs.djangoproject.com/en/4.2/releases/security/

Release Notes

https://groups.google.com/forum/#%21forum/django-announce

Permissions Required

https://lists.debian.org/debian-lts-announce/2023/07/msg00022.html

Mailing List

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NRDGTUN4LTI6HG4TWR3JYLSFVXPZT42A/

Mailing ListThird Party Advisory

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XG5DYKPNDCEHJQ3TKPJQO7QGSR4FAYMS/

Mailing ListThird Party Advisory

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZQJOMNRMVPCN5WMIZ7YSX5LQ7IR2NY4D/

https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZQJOMNRMVPCN5WMIZ7YSX5LQ7IR2NY4D/

https://www.debian.org/security/2023/dsa-5465

Third Party Advisory

https://www.djangoproject.com/weblog/2023/jul/03/security-releases/

PatchVendor Advisory

KEV Catalog EPSS Scores Vendors All CVEs