Vulnerability advisory

GHSA-53qw-q765-4fww

Denial-of-service in Django

Published Jan 12, 2022Updated Sep 20, 2024OSV record ↗

Also known as BIT-django-2021-45115CVE-2021-45115PYSEC-2022-1

Severity

CVSS 3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 4.0CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Affected versions

django PyPI

All django advisories →

Affected	Fixed in
`2.2a1` to before 2.2.26	`2.2.26`Advisories →
Also listed as affected (29) `2.2` `2.2.1` `2.2.10` `2.2.11` `2.2.12` `2.2.13` `2.2.14` `2.2.15` `2.2.16` `2.2.17` `2.2.18` `2.2.19` `2.2.2` `2.2.20` `2.2.21` `2.2.22` `2.2.23` `2.2.24` `2.2.25` `2.2.3` `2.2.4` `2.2.5` `2.2.6` `2.2.7` `2.2.8` `2.2.9` `2.2a1` `2.2b1` `2.2rc1`
`3.2a1` to before 3.2.11	`3.2.11`Advisories →
Also listed as affected (14) `3.2` `3.2.1` `3.2.10` `3.2.2` `3.2.3` `3.2.4` `3.2.5` `3.2.6` `3.2.7` `3.2.8` `3.2.9` `3.2a1` `3.2b1` `3.2rc1`
`4.0a1` to before 4.0.1	`4.0.1`Advisories →
Also listed as affected (4) `4.0` `4.0a1` `4.0b1` `4.0rc1`

Description

An issue was discovered in Django 2.2 before 2.2.26, 3.2 before 3.2.11, and 4.0 before 4.0.1. UserAttributeSimilarityValidator incurred significant overhead in evaluating a submitted password that was artificially large in relation to the comparison values. In a situation where access to user registration was unrestricted, this provided a potential vector for a denial-of-service attack.

GHSA-53qw-q765-4fww

Affected versions

django PyPI

Description

References