Vulnerability advisory

GHSA-7h4p-27mh-hmrw

Django Denial of service vulnerability in django.utils.encoding.uri_to_iri

Published Nov 3, 2023Updated Nov 4, 2025OSV record ↗

Also known as BIT-django-2023-41164CVE-2023-41164PYSEC-2023-225

Severity

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

Affected versions

django PyPI

All django advisories →

Affected	Fixed in
`3.2` to before 3.2.21	`3.2.21`Advisories →
Also listed as affected (21) `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` `3.2.20` `3.2.3` `3.2.4` `3.2.5` `3.2.6` `3.2.7` `3.2.8` `3.2.9`
`4.1` to before 4.1.11	`4.1.11`Advisories →
Also listed as affected (11) `4.1` `4.1.1` `4.1.10` `4.1.2` `4.1.3` `4.1.4` `4.1.5` `4.1.6` `4.1.7` `4.1.8` `4.1.9`
`4.2` to before 4.2.5	`4.2.5`Advisories →
Also listed as affected (5) `4.2` `4.2.1` `4.2.2` `4.2.3` `4.2.4`

Description

In Django 3.2 before 3.2.21, 4.1 before 4.1.11, and 4.2 before 4.2.5, django.utils.encoding.uri_to_iri() is subject to a potential DoS (denial of service) attack via certain inputs with a very large number of Unicode characters.

GHSA-7h4p-27mh-hmrw

Affected versions

django PyPI

Description

References